MEDIUM

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$45$ members in a bulb manufacturing co-operative factory can make $10000$ bulbs in $12$ days. Based on a sudden order $10000$ bulb have to be made in $9$ days. Let's calculate how many extra members need to be appointed to supply the bulbs according to the agreement.

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Important Questions on Ratio and Proportion

MEDIUM

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

A,B, and C together complete a work in 2 days. If A and B need 2.4 days to complete the work, while B and C together complete the work in 4 days then in how many days will B alone do the work?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

Deepa and Seema together do a work in

6

days. Deepa can complete the same work alone in

9

days. In how many days will Seema complete the work alone ?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

Ratio of days required by A and B to complete some work is

3 : 5

. They require

5 \frac{5}{8}

days to complete the work. In how many days can A alone complete twice the work?

HARD

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

Indira and Chandra can do a task separately in

20

days and

80

days respectively. Indra begins the work and works for

3

days and then takes a leave for five days during those days Chandra works. This process continues till the end of the work. How many days are taken to complete the work?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

Ten people can do a work in $30$ days. In how many days, can 15 people complete double the work -

1. $40$

2. $25$

3. $20$

4. $45$

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

X

and

Y

can complete a work in

5

days.

Y

and

Z

can complete the same work in

6

days.

Z

and

X

can complete the same work in

\frac{15}{2}

days. In How many days will

X, Y

and

Z

toogether complete the work?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

20

dogs can eat

20

hens in

10

days. In how many days

40

dogs eat

40

such hens?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

5 men take 20 days to complete a task. They work 8 hours per day. 8 men work for 7 hours a day, then in how many days will they finish the task?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

G is twice as fast as S in doing work. If G can do a work in $30$ days less than S, how many days will they take to complete the work together?

1. $25$
2. $20$
3. $22$
4. $15$

MEDIUM

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

A and B can complete a piece of work in

6

and

12

days separately. If they work jointly, how long will they take to complete this piece of work ?

MEDIUM

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

9800 J

of energy was spent to raise a mass of

70 kg

. The mass was raised to a height of _____?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

A

is twice as good a workman as

B

and together, they finish a piece of work in

14

days. The number of days taken by

A

alone to finish the work is:

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

X

can complete a work in

27

days, and

Y

can do the same work in half of the time taken by

X

. They are working together, what part of the same work they can complete in a day?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

Working

9

hours a day, Manish can read a book in

16

days. How many hours a day should he work so as to finish the same work in

24

days?

HARD

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

X

can complete

{\frac{5}{7}}^{t h}

part of a work in

10

days and

Y

can complete

{\frac{3}{4}}^{t h}

part of the same work in

9

days. In how many days will both complete

{\frac{13}{21}}^{s t}

part of the total work?

MEDIUM

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

M

alone can do a work in

50

days.

M

10 %

less efficient than

N

. In how many days can

N

alone do the same work?

EASY

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

X can do 5 times faster work than that of Y and so it takes 36 days less than Y. Find the time in which X alone can complete the work?

MEDIUM

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

10

persons can build a wall in

8

days. How may persons can build the wall in half day ?

HARD

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

A

and

B

can do a job together in

12

days.

A

2

times as efficient as

B

. In how many days can

B

alone complete the work?

MEDIUM

Mathematics & Science>Arithmetic>Ratio and Proportion>Time and Work

A group of soldiers can completely destroy an enemy camp in

5

days. However,

9

soldiers were injured. The remaining soldiers destroyed the camp in

8

days. Calculate the actual number of soldiers who destroyed the camp?

45 members in a bulb manufacturing co-operative factory can make 10000 bulbs in 12 days. Based on a sudden order 10000 bulb have to be made in 9 days. Let's calculate how many extra members need to be appointed to supply the bulbs according to the agreement.

Important Questions on Ratio and Proportion

Learn and Prepare for any exam you want !

$45$ members in a bulb manufacturing co-operative factory can make $10000$ bulbs in $12$ days. Based on a sudden order $10000$ bulb have to be made in $9$ days. Let's calculate how many extra members need to be appointed to supply the bulbs according to the agreement.