Question

Q 16: The ages of Sonu and Monu
are in the ratio 7:5 Ten years hence,
the ratio of their ages will be 9:7
find their present ages.
Sonu= 35 YEARS; Monu =25 Years
Sonu = 30 Years ; Monu = 20 Years
O
Sonu = 15 Years ; Monu = 5 Years
none of these​

Answer 1

Step-by-step explanation:

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Answer 2

Present age of Monu be 5x years

Sonu’s age after 10 years = (7x + 10) years

Monu’s age after 10 years = (5x + 10) years

so,

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

by using cross-multiplication we get,

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

49x + 70 = 45x + 90

49x – 45x = 90 – 70

4x = 20

x = 20/4

= 5

∴ Present age of Sonu is 7x = 7(5) = 35years

Present age of Monu is 5x = 5(5) = 25years

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