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The ratio of numbers of boys and girls in a school of $720$ students is $7 : 5$ . How many more girls should be admitted to make the ratio $1 : 1$ ?

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Important Questions on Ratio and Proportions

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 66

a : b = 3 : 5

, then find

(9 a + 4 b) : (5 a + 6 b)

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 67

A person distributed his pens among four friends A, B, C, D in the ratio

\frac{1}{3} : \frac{1}{4} : \frac{1}{5} : \frac{1}{6}

. The minimum number of pens a person should have:

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 68

For integer values of

a

and

b

b^{a} = 8

. The ratio of

a

b

is equivalent to the ratio of

c

d

, where

c

and

d

are integers. The value of

c

when

d = 10

is:

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 69

A sum of $R s . 85$ is divided among $A, B, C$ in such a way that $A$ get $R s . 7$ more than what $B$ gets and $B$ gets $R s . 9$ more than $C$ gets. The ratio of their shares?

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 70

94

is divided into two parts in such a way that the fifth part of the first and the eight-part of the second are in the ratio

3 : 4

. The second part is:

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 71

R s . 770

have been divided among

A, B, C

in such a way that

A

receives

\frac{2}{9}

th of what

B

and

C

receive together. Then

A

's share is:

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 72

R s . 5625

are divided among

A, B

and

C

so that

A

may receive one-half as much as

B

and

C

together receive and

B

receives one-fourth of what

A

and

C

receive together. The share of

A

is more than that of

B

by:

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IBPS RRB Officers Scale-I, Preliminary & Main Online Exam>Chapter 3 - Ratio and Proportions>OBJECTIVE TYPE QUESTIONS>Q 73

A and B are two alloys of gold and copper prepared by mixing metals in the ratio

7 : 2

and

7 : 11

respectively. If equal quantities of alloys are melted to form a third alloy C then the ratio of gold and copper in C is:

The ratio of numbers of boys and girls in a school of 720 students is 7:5. How many more girls should be admitted to make the ratio 1:1?

Important Questions on Ratio and Proportions

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The ratio of numbers of boys and girls in a school of $720$ students is $7 : 5$ . How many more girls should be admitted to make the ratio $1 : 1$ ?