Question

The age of a and b are in ratio 3:4 five year later the sum of their ages will be 31 . What is their present age?

Answer 1

Answer:

let their age be x

3x:4x

after 5 yrs

3x+5

4x+5

now equation-

3x+5+4x+5=31

7x+10=31

7x=31-10

7x=21

x=21/7

x=3

their ages are

3×3=9

4×3=12

Respectively

hope it helps....

Answer 2

Answer:

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Step-by-step explanation:

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