Question

7 years ago, the ratio of the ages of Anirudh to that of Bhavana, was 7:9. Chandhu is 12 years older than Anirudh and 12 years younger than Bhavana. What is Chandhu's present age?

Answer 1

Hey mate ^_^

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Answer:
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Let present Anirudh's age be 'x' and Bhavana's age be 'y'

Given seven years, their ratio is $7 : 9$

$x-7 : y-7 = 7 : 9$

$9x - 7y = 14 ---- (1)$

Now,

Chandhu is 12 years older than 'x' and 12 years younger than 'y'

$C = x + 12 ---- (2)$

$y = C + 12$

$y = x + 12 + 12 ---- [From (2)]$

$y = x + 24 ---- (3)$

$Put (3) in (1)$

$9x - 7(x+24) = 14$

$9x - 7x - 168 = 14$

$2x = 182$

$x = 91 years$

Now,

Substitute 'x' in equation (2)

$C = x + 12$

$C = 91 +12$

$C = 103 years$

Therefore,

Answer: $103 years$

#Be Brainly❤️

Answer 2

Heyy mate ❤✌✌❤

Here's your Answer....

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Let present Anirudh's age be 'A' and Bhavana's age be 'B'

Given seven years, their ratio is 7:9

=> A-7 : B-7 = 7 : 9

=> 9A - 7B = 14 .......(1)

And given,

Chandhu is 12 years older than A nad 12 years younger than B

=> C = A + 12....(2)

=> B = C + 12

=> B = A + 12 + 12 .....(From (2))

=> B = A + 24 ....(3)

Put (3) in (1)

9A - 7(A+24) = 14

9A - 7A - 168 = 14

2A = 182

=> A = 91 years

=> C = A + 12 = 91 +12 = 103 years
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