The table below shows the income and expenditure of 5 different persons Persons Monthly Income Expense on household Investment in mutual funds Expense of childs Education Savings A 45000 7500 B 30 12000 C 20 25000 D 15000 E 56000 12000 F 18000 10 12 If the monthly salary of B is increased by 25 and as a result his savings is increased to 24000 from 20000 at present and his new savings is 30 of his increased income then find his percentage expenses on the childs education

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Study the following table and answer the question:

Number of students appeared (A) and passed(P) in an annual examination from four schools Q, R, S and T in five years $(2014 to 2018)$

	Q (A)	Q (P)	R(A)	R (P)	S(A)	S (P)	T(A)	T (P)
$2014$	$320$	$240$	$400$	$340$	$420$	$273$	$250$	$225$
$2015$	$400$	$320$	$380$	$285$	$350$	$280$	$300$	$228$
$2016$	$440$	$286$	$360$	$288$	$330$	$264$	$320$	$256$
$2017$	$350$	$252$	$420$	$294$	$380$	$247$	$350$	$315$
$2018$	$375$	$320$	$450$	$405$	$400$	$344$	$375$	$300$

The difference between the average number of students passed from school R in $2015 to 2017$ and the number of students passed from school Q in $2015 is x$ . The value of $x$ lies between______.

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Study the given table and answer the question that follows.

In the table, the annual consumption (in $hundred$ tonnes) of coffee in five states (A, B, C, D and E) across six years $(2014 to 2019)$ is given.

Year	A	B	C	D	E
$2014$	$112$	$130$	$136$	$105$	$117$
$2015$	$122$	$138$	$150$	$140$	$120$
$2016$	$124$	$134$	$142$	$144$	$132$
$2017$	$132$	$154$	$198$	$149$	$133$
$2018$	$135$	$148$	$187$	$151$	$145$
$2019$	$153$	$136$	$198$	$150$	$187$

By what percentage is the total consumption of coffee in state D from $2014 to 2016$ less than the total consumption of coffee in the states A,B, C and E in $2015$ ?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Study the following table and answer the question:

Marks obtained by six students A, B, C, C, E and F in five subjects.

	English	Maths	Science	Hindi	Social studies
A	$70$	$90$	$65$	$64$	$88$
B	$84$	$92$	$75$	$68$	$49$
C	$66$	$80$	$85$	$80$	$84$
D	$62$	$74$	$75$	$88$	$60$
E	$54$	$64$	$55$	$72$	$85$
F	$72$	$84$	$65$	$60$	$65$

The total marks obtained by students E in all the five subjects are______.

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Study the following table and answer the question:

Number of students enrolled for Vocational Courses (VC) in institute A, B, C, D, E, F.

	$2014$	$2015$	$2016$	$2017$	$2018$
A	$110$	$150$	$165$	$180$	$205$
B	$120$	$180$	$176$	$200$	$220$
C	$140$	$220$	$180$	$175$	$225$
D	$125$	$210$	$175$	$180$	$230$
E	$150$	$200$	$160$	$200$	$240$
F	$165$	$230$	$200$	$220$	$210$

Find the difference between the average number of students enrolled for VC in institute F in $2015, 2017 & 2018$ and the average number of students enrolled for VC from all institutes in $2014$ .

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

The given table represents the exports (in crores) of four items $A, B, C and D$ over a period of six years. Study the table and answer the question that follows:

Items $\to$	A	B	C	D
Year $↓$	A	B	C	D
$2010$	$240$	$128$	$180$	$214$
$2011$	$250$	$134$	$244$	$282$
$2012$	$225$	$138$	$230$	$247$
$2013$	$370$	$169$	$340$	$224$
$2014$	$425$	$182$	$300$	$309$
$2015$	$400$	$209$	$306$	$275$

What is the ratio of total exports of item $A$ in $2014$ and $2015$ to the total exports of item $C$ in $2011$ and $2015$ :

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Table shows income (in $₹$ ) recieved by $4$ employees of a company during the month of December $2020$ and all their income sources.

Sources	Amit	Suresh	Nitin	Varun
Salary	$35000$	$38500$	$29000$	$42000$
Arrears	$6000$	$6300$	$5000$	$7500$
Bonus	$1000$	$1100$	$1000$	$1240$
Overtime	$1800$	$1950$	$1400$	$1500$

What is the ratio of salary of Varun to his income other than salary?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Table shows District-wise data of number of primary school teachers posted in schools of a city.

Study the table and answer the questions.

District	Male teachers	Female teachers
East	$1650$	$2375$
North	$1075$	$2651$
West	$1280$	$1520$
South	$1170$	$1085$
Central	$690$	$859$

What is the difference between the total number of male teachers in the districts East, North, west taken together and the total number of female teachers in the districts East and South?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Read the following information and answer the four items that follow:

The data shows that Indian roads are turning deadlier over the years.

Year	$2014$	$2015$	$2016$	$2017$
Number of bikers killed	$40957$	$46070$	$52750$	$48746$
Number of pedestrians killed	$12330$	$13894$	$15746$	$20457$
Number of cyclists killed	$4037$	$3125$	$2585$	$3559$

What is the average number of bikers killed daily in road accidnets in the year $2017$ ?

MEDIUM

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

The table below shows the admissions and transfers in standards $1 - 3$ of a school.

Question Image

In the given table, what was the total strength in standards $1 - 3$ at the end of $2015$ ?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

The table shows the number of candidates appearing for an interview for an interview for a post in six banks (H, I, J, K, L, M) and percentage of qualifying candidates.

Banks	Candidates Appearing	% of Candidates Qualifying
H	1500	14
I	2200	26
J	3000	17
K	980	20
L	1200	28
M	2500	21

What was the average number of candidates who appeared for the interview in bank H, J and L together?

MEDIUM

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Study the table and answer the question that follows.

Percentage of marks obtained by six students in five subjects A, B, C, D and E.

Subject\Student	A (Out of $75$ )	B (Out of $80$ )	C (Out of $100$ )	D (out of $50$ )	E (out of $150$ )
Manju	$68$	$85$	$86$	$72$	$92$
Amit	$64$	$65$	$80$	$96$	$80$
Rekha	$88$	$75$	$65$	$74$	$90$
Anuj	$80$	$55$	$68$	$66$	$84$
Abhi	$72$	$65$	$72$	$54$	$74$
Vikram	$60$	$70$	$73$	$84$	$86$

Total marks obtained by Amit, Abhi and Anuj in subject E is what percent more than the total marks obtained by all the six students in subject B? (correct to one decimal place)

MEDIUM

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

As per data shown in the following table,what is the percentage of students who got less than $50$ marks?

Marks

obtained

10 to 20

20 to 30

30 to 40

40 to 50

50 to 60

60 to 70

70 to 80

Number of

students

5

11

18

38

39

24

15

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

The monthly expenditure of a person is $₹ 6000$ . The distribution of expenditure on various items is as follows:

Item of expenditure	Amount(in $₹$ )
Food	$2, 000$
Clothing	$660$
Fuel and rent	$1200$
Education	$480$
Miscellaneous	$1660$

If the above data is represented by a percentage bar diagram of height $15 cm$ , then what are the lengths of the two segments of the bar diagram corresponding to education and miscellaneous respectively?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Table shows the number of trees planted in $4$ cities from $2016 to 2020$ .

Years	Chandigarh	Ahmadabad	Pune	Kolkata
$2016$	$1800$	$2500$	$1800$	$2000$
$2017$	$2500$	$2300$	$1850$	$1800$
$2018$	$2300$	$2400$	$1840$	$1760$
$2019$	$2440$	$1950$	$1900$	$1600$
$2020$	$2250$	$2100$	$2000$	$1750$

What is the total number of trees planted in chandigarh in $2017$ and in kolkata in $2020$ ?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Read the following information and answer below.

Let the distribution of the number of scooters of companies X and Y sold by $5$ showrooms.

(A, B, C, D and E) in a certain year be denoted by S $1$ and the distribution of the number of scooters of only company. X sold by the five showrooms in the same year be denoted by S $2$ .

Showroom	A	B	C	D	E	The total number of scooters sold
S $1$ (in %)	$19$	$21$	$15$	$33$	$12$	$6400$
S $2$ (in %)	$24$	$18$	$20$	$30$	$8$	$3000$

What is the difference between the number of scooters of company X and Y sold by showroom A and the total number of scooters of company X sold by showrooms B and E together?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Read the following information and answer the four items that follow:

The data shows that Indian roads are turning deadlier over the years.

Year	$2014$	$2015$	$2016$	$2017$
Number of bikers killed	$40957$	$46070$	$52750$	$48746$
Number of pedestrians killed	$12330$	$13894$	$15746$	$20457$
Number of cyclists killed	$4037$	$3125$	$2585$	$3559$

What is the approximate percentage change in the pedestrians fatalities during the period $2014 - 17$ ?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Read the following information and answer the four items that follow:

The data shows that Indian roads are turning deadlier over the years.

Year	$2014$	$2015$	$2016$	$2017$
Number of bikers killed	$40957$	$46070$	$52750$	$48746$
Number of pedestrians killed	$12330$	$13894$	$15746$	$20457$
Number of cyclists killed	$4037$	$3125$	$2585$	$3559$

What is the approximate average number of cyclists killed daily in road accidents in the year $2017$ ?

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

Study the table and answer the question that follows.

In the given table, production of five different type of machines(A, B, C, D, E) in the year from $2016 to 2020$ (in thousands) is given.

Machines	Years
Machines	$2016$	$2017$	$2018$	$2019$	$2020$
A	$46$	$53$	$56$	$58$	$67$
B	$50$	$65$	$67$	$66$	$72$
C	$43$	$54$	$55$	$47$	$51$
D	$47$	$52$	$61$	$65$	$74$
E	$48$	$58$	$63$	$64$	$67$

What is the ratio of the total production of type A machines in $2018$ and type E machines in $2019$ to the total production of type C and type D machines in year $2016$ ?

MEDIUM

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

The following table shows the income (in rupees) for a particular month, together with their source, in respect of

5

employees (A, B, C, D and E).

	A	B	C	D	E
Salary	$52, 000$	$48, 500$	$42, 000$	$31, 000$	$25, 000$
Overtime	$0$	$0$	$1, 500$	$2, 500$	$3, 200$
Arrears	$5, 500$	$4, 500$	$4, 000$	$3, 000$	$1, 500$
Bonus	$3, 500$	$3, 000$	$2, 500$	$2, 000$	$2, 000$
Miscellaneous income	$5, 000$	$3, 000$	$2, 000$	$1, 500$	$0$
Total	$66, 000$	$59, 000$	$52, 000$	$40, 000$	$31, 700$

For employee D, the income from overtime is what percentage of his total income :

EASY

Mathematics>Statistics>Statistics>Frequency Table of Unclassified Data

The monthly fees for facilities provided by a sports complex house is as follows:
For Gym $₹ 500$ , for Swimming Pool $₹ 1500$ , for Tennis court $₹ 2000$ . The list of members using these facilities is as below. How much do they earn from members using the gym each month?

Facilities	Number of Members
Gym	$300$
Swimming Pool	$200$
Tennis Court	$100$

Persons	Monthly Income	Expense on household	Investment in mutual funds	Expense of child’s Education	Savings
A	$45000$			$7500$
B		$30 %$	$12000$
C			$20 %$		$25000$
D		$15000$
E	$56000$		$12000$
F		$18000$		$10 %$	$12 %$

Important Questions on Statistics

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