Question

The ages of Hari and Harry are in the ratio 5.7 . Four years from now the ratio of their
ages will be 3:4. Find their present ages.​

Answer 1

Answer:

x=4

Step-by-step explanation:

consider,

Haris's present age = 5x

Harry's present age = 7x

after 4 years,

Haris's age = 5x+4

Harry's age = 7x+4

according to the question,

(5x+4):(7x+4) = 3:4

5 x + 4/7 x + 4 = 3/4

using cross multiplication,

4 ×(5 x + 4) = 3 ×( 7 x + 4)

4 ×5 x + 4 ×4 = 3× 7 x + 3×4

20x + 16 = 21x + 12

20x - 21 x = 12 - 16

-x = -4

x=4

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