Current age is 5:7 sum of age after 4 year is 56 find current age
Answers
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Answer :
Given that, the ratio of current ages is 5 : 7
Let, x be the common ration
Then, the ages of them be 5x years and 7x years respectively
After 4 years, they will be (5x + 4) years and (7x + 4) years respectively
By the given condition,
(5x + 4) + (7x + 4) = 56
==> 5x + 4 + 7x + 4 = 56
==> 12x + 8 = 56
==> 12x = 56 - 8
==> 12x = 48
==> x = 48/12
==> x = 4
Therefore, their current age be
(5 × 4) years and (7 × 4) years respectively
i.e., 20 years and 28 years respectively
#MarkAsBrainliest
hey dear...
let 5:7 be 5x and 7x respectively...
after 4 yrs it will be (5x+4) and (7x+4) resp.
(5x+4)(7x+4)=56
12x+8=56
12x=48
x=4....
now,put value of x in ratio,
5X4=20 and 7X4=28 ages....
thnx for asking dear......