Question

the ages of sonu and monu are in the ratio 7:5 ten years hence, the ratio of thier ages will be 9:7 . find their present ages​

Answer 1

Answer: hey mate,,,,,here is your answer..

let the ages of Sonu and monu be 7x and 5x respectively and after ten yrs

there ages will be 9x and 7x respectively

according to question [ATQ] :

(7x+10)/(5x+10) = 9x/7x

(7x+10)/(5x+10) = 9/7

7(7x+10) = 9(5x+10)

49x+70 = 45x +90

4x = 20 => x = 20/4 = 5 yrs

sonu's age = 7x = 7×5 = 35 yrs

monu's age = 5x = 5×5 = 25yrs

HOPE IT HELPS U...

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Answer 2

Answer:

let their ages be 7x and 5x

7x+10/ 5x+10= 9/7

cross multiply

7(7x+10)= 9(5x+10)

49x+70= 45x+90

49x-45x= 90-70

4x= 20

x=20/4

x=5

thats your answer!

Step-by-step explanation:

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