1.

The age of the two friends were in the ratio of 5: 2. If the sum of their ages is 56. Then after how many years their ratio will become 7:4?121418o 16​

Answer»

Answer:

After 16 years

Step-by-step explanation:

LET age of two friends be x

5x + 2x = 56

7x = 56

x = 56/7

x = 8

5x = 5× 8 = 40 years

2x = 2 × 8 = 16 years

when his age will be 7:4 means :

7x and 4x

So , 7x = 7 × 8 = 56 years

4x = 4 × 8 = 32 years

So present age is 40 and 16

After how many years it became 56 and 32

So first friend age = 56 - 40 = 16

And second friend age = 32 - 16 = 16

So , after 16 years their age will be 7:4

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