App Logo

No.1 PSC Learning App

1M+ Downloads
What must be added to each term of the ratio 7 : 13 so that the ratio becomes 2 : 3 ?

A1

B2

C3

D5

Answer:

D. 5

Read Explanation:

(7 + N) / (13 + N) = 2/3 ⇒ 3(7 +N) = 2(13 + N) N = 5


Related Questions:

The cost of 8A is equal to the cost of 50B. The cost of 19C is 456. The cost of B is twice the cost of 2C. What is the total cost of 3A and 4B together?
A mixture contains acid and water in the ratio of 6 : 1. On adding 12 litres of water to the mixture, the ratio of acid to water becomes 3 : 2. The quantity of water (in litres) in the original mixture was:
A:B=3:2, B:C=4:5 ആയാൽ A:B:C എത്ര?
An amount of ₹682 is divided among three persons in the ratio of 18 : 3 : 9. The difference between the largest and the smallest shares (in ₹) in the distribution is:
How many litres of milk with 24% concentration are to be mixed with 18 litres with 72% concentration to get a mixture with 36% concentration?