Question

the ages of sonu and monu are in the ratio 7:5 10 years hence the ratio of their ages will be 9:7 find their present age

please give me ans fast​

Answer 1

Let

Present ages of Sonu = 7x

Present age of Monu = 5x

10 years hence,

Age of Sonu = 7x + 10

Age of Monu = 5x + 10

According to the question;

$\sf{ \frac{7x + 10}{5x + 10} = \frac{9}{7} } \\ \\ \implies \sf9(5x + 10) = 7(7x + 10) \\ \implies \sf 45x + 90 = 49x + 70 \\ \implies \sf{90 - 70 = 49x - 45x} \\ \implies \sf4x = 20 \\ \implies \sf{x = \frac{20}{4} } \\ \implies \sf \boxed{ \sf{x = 5}}$

$\sf{present \: age \: of \: Sonu = 7x = 7 \times 5 = 35} \\ \sf{present \: age \: of \: Monu = 5x = 5 \times 5= 25}$

Therefore,

Present age of Sonu = 35 years

Present age of Monu = 25 years

Answer 2

Answer:

soun = 35 years

monu= 25 years

Step-by-step explanation:

PLEASE FOLLOW ME AND MARK ME AS BRAINLIEST AND THANK ME