Ratio proportion and partnership Practice Questions

Ratio proportion and partnership Practice Questions

In a college, the ratio of boys to girls is 31 : .23 respectively. When 75 more girls join the college, this ratio becomes 124 : 107. How many more girls should join the college to make the number of boys and girls equal?

(a) 75 (b) 90 (c) 60 (d) 85

(e) None of these

Study the following information carefully to answer the questions that follow.

There are two trains, A and B. Both trains have four different types of coaches viz. general coaches, sleeper coaches, first class coaches and AC coaches. In train A, there are total 700 passengers. Train B has 30% more passengers than train A. 20% of the passengers of train A are in general coaches. One-fourth of the total number of passengers of train A are in AC coaches. 23% of the passengers of train A are in sleeper class coaches. Remaining passengers of train A are in first class coaches. Total number of passengers in AC coaches in both the trains together is 480. 30% of the number of passengers of train B is in sleeper class coaches, 10% of the total passengers of train B are in first class coaches. Remaining passengers of train B are in general class coaches.

What is the ratio of the number of passengers in first class coaches of train A to the number of passengers in sleeper class coaches of train B?

(a) 13 : 7 (b) 7 : 13 (c) 32 : 39

(d) Data inadequate (e) None of these

What is the total number of passengers in the general coaches of train A and the AC coaches of train B together?

(a) 449 (b) 459 (c) 435 (d) 445

(e) None of these

What is the difference between the number of passengers in the AC coaches of train A and total number of passengers in sleeper class coaches and first class coaches together of train B?

(a) 199 (b) 178 (c) 187 (d) 179

(e) None of these

Total number of passengers in general class coaches in both the trains together is approximately what percentage of total number of passengers in train B?

(a) 35 (b) 42 (c) 45 (d) 38

(e) 31

If cost of per ticket of first class coach ticket is Rs. 450, what total amount will be generated from first class coaches of train A?

(a) Rs 100080 (b) Rs 108000

(e) None of these

In a mixture of 30 L, the ratio of milk and water is 2 : 1. To make this ratio to be 1 : 2, find the quantity of water to be further added.

(a) 30 L (b) 35 L (c) 25 L (d) 40 L

(e) 45 L

The respective ratio between the present age of Manisha and Deepali is 5 : X. Manisha is 9 yr younger than Parineeta. Parineeta's age after 9 yr will be 33 yr. The difference between Deepali's and Manisha's age is same as the present age of Parineeta. What will come in place ofX?

(a) 23 (b) 39 (c) 15

(d) Can't be determined (e) None of these

The ratio between the present ages of Ram, Rohan and Raj is 3 : 4 : 5. If the average of their present ages is 28 yr, what would be the sum of the ages of Ram and Rohan together after 5 yr ?

(a) 45 yr (b) 55yr (c) 52 yr (d) 59 yr

(e) None of these

The respective ratio between the present ages of son, mother, father and grandfather is 2 : 7 : 8 : 12. The average age of son and mother is 27 yr. What will be mother's age after 7 yr?

(a) 40 yr (b) 41 yr (c) 48 yr (d) 49 yr

(e) None of these

What should come in place of the question mark (?) in the following questions ?

15 : 66 :: 185 : ?

(a) 824 (b) 644 (c) 604 (d) 814

(e) None of these

Which of the following represents ab = 64 ?

(a) 8 : a = 8 : b (b) a : 16 = b : 4

(e) None of these

The respective ratio between the present ages of Ram and Rakesh is 6 : 11. Four years ago, the ratio of their ages was 1 : 2 respectively. What will be Rakesh's age after five years?

(a) 45 yr (b) 29 yr (c) 49 yr

(d) Can't be determined (e) None of these

Answers: