Question

One year ago the ratio of ages of ram and ahmed was 3:4 and one year after, the ratio of ages will be 10:13 respectively.what is the present age of ram from among the following

Answer 1

Answer:

ram's present age = 9

Step-by-step explanation:

given,

ratio of present age = 3 : 4

let ram's age be 3x and ahmed's age be 4x

ram's age after one year = 3x + 1

ahmed's age after one year = 4x + 1

ratio of ages after 1 year = 10 : 13

according to question,

(3x +1) / (4x +1) = 10 / 13

13 * (3x +1) = 10 * (4x +1)

⇒ 39x + 13 = 40x + 10

⇒ 40x - 39x = 13 - 10

x = 3

ram's present age = 9  

ahmed's present age = 12

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