The ages of Leena and heena are in the ratio of 7:5. Ten years hence, ratio of their ages will be 9:7. Find the present age.
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7:5
9:7
2----------10
7----------35
5----------25
present age = 35 & 25 (Ans)
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Question :-
● The age of Leena and Heena are in the ratio 7:5 ten year hence the ratio of there ages will be 9:7 find the present ages.
Given :-
• Age of Leena and Heena are 7:5
• The ratio of there ages will be 9:7
To find :-
• the present ages
Solution :-
• Let the present ages of Leena and Heena be 7x : 5x
• After 10 yrs , their age will be (9x+10) and (7x+10)
According to the given condition,
(7x + 10) : (5x + 10) = 9 : 7
i.e 7x + 10/5x + 10 = 9/7
⇒7(7x+10) = 9(5x + 10)
⇒49x + 70 = 45x + 90
⇒49x - 45x = 90 - 70
⇒ 4x = 20
⇒ x = 5
∴ Present age of Leena= 7x = 7×5 = 35 yrs
∴ Present age of Heena= 5x = 5×5 = 25 yrs
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