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The ratio of the present ages of Suman and Renu is 5 : 7
respectively. Four years hence the ratio will become 3 : 4
respectively. What is the present age of Renu in years?
(a) 28
(b) 24
(c) 20
(d) 21
(e) None of these
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Answer / suchi teegala
let the ratio of ages of suman and renu be 5x/7x
after four years
their ratio of ages is (5x+4)/(7x+4)=3/7
on solving the equation 20x+16=21x+12
we get x=4
on substitution in 7x
we get renu's present age as
28 years
| Is This Answer Correct ? | 42 Yes | 5 No |
Answer / arun
let the ratio of ages of suman and renu be 5x/7x
after four years
their ratio of ages is (5x+4)/(7x+4)=3/4
on solving the equation 20x+16=21x+12
we get x=4
on substitution in 7x
we get renu's present age as
28 years
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / pramodkumargaraladinni@gmail.c
The ratio of the present ages of Suman and Renu is 5 : 7
respectively. Four years hence the ratio will become 3 : 4
respectively. What is the present age of Renu in years?
ANS'
( 3:4 = or 3/7 and 4/7)
( 3*7=21 and 4*7 =28 and add the both answer like 21+28=49 multiple by 4 years= 196/7=28.
ans ; 28
| Is This Answer Correct ? | 1 Yes | 0 No |
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