Ratio and proportion

[poornima lagadapati]

Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:

A. 2 : 5
B. 3 : 5
C. 4 : 5
D. 6 : 7

A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B's share?

A. Rs. 500
B. Rs. 1500
C. Rs. 2000
D. None of these

Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

A. 2 : 3 : 4
B. 6 : 7 : 8
C. 6 : 8 : 9
D. None of these

 

[poornima lagadapati]

In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:

A. 20 litres
B. 30 litres
C. 40 litres
D. 60 litres

The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

A. 8 : 9
B. 17 : 18
C. 21 : 22
D. Cannot be determined

Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?

A. Rs. 17,000
B. Rs. 20,000
C. Rs. 25,500
D. Rs. 38,000

 

[poornima lagadapati]

If 0.75 : x :: 5 : 8, then x is equal to:

A. 1.12
B. 1.2
C. 1.25
D. 1.30

The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:

A. 20
B. 30
C. 48
D. 58

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?

A. 3 : 3 : 10
B. 10 : 11 : 20
C. 23 : 33 : 60
D. Cannot be determined

 

[poornima lagadapati]

If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?

A. 2 : 5
B. 3 : 7
C. 5 : 3
D. 7 : 3

The fourth proportional to 5, 8, 15 is:

A. 18
B. 24
C. 19
D. 20

Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is:

A. 27
B. 33
C. 49
D. 55

 

[poornima lagadapati]

Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:

A. 2 : 5
B. 3 : 5
C. 4 : 5
D. 6 : 7

A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B's share?

A. Rs. 500
B. Rs. 1500
C. Rs. 2000
D. None of these

Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

A. 2 : 3 : 4
B. 6 : 7 : 8
C. 6 : 8 : 9
D. None of these

1.c, 2.c

 

[poornima lagadapati]

In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:

A. 20 litres
B. 30 litres
C. 40 litres
D. 60 litres

The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

A. 8 : 9
B. 17 : 18
C. 21 : 22
D. Cannot be determined

Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?

A. Rs. 17,000
B. Rs. 20,000
C. Rs. 25,500
D. Rs. 38,000

1. D, 2. C

 

[poornima lagadapati]

If 0.75 : x :: 5 : 8, then x is equal to:

A. 1.12
B. 1.2
C. 1.25
D. 1.30

The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:

A. 20
B. 30
C. 48
D. 58

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?

A. 3 : 3 : 10
B. 10 : 11 : 20
C. 23 : 33 : 60
D. Cannot be determined

1. B, 2. B

 

[poornima lagadapati]

If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?

A. 2 : 5
B. 3 : 7
C. 5 : 3
D. 7 : 3

The fourth proportional to 5, 8, 15 is:

A. 18
B. 24
C. 19
D. 20

Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is:

A. 27
B. 33
C. 49
D. 55

1. C, 2. B

 

[poornima lagadapati]

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

A.50
B.100
C.150
D.200

 

[poornima lagadapati]

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

A.50
B.100
C.150
D.200

Option c