The product of ramu' s age 5 years ago with his age 7 years later is 28. Ramu' s present age is :
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Hii friend,
let the present age of Ramu be X.
Before 5 years age of Ramu = (X-5) years.
After 7 years age of Ramu = (X+7) years.
A/Q,
(X-5)(X+7) = 28
X(X+7) - 5(X+7) = 28
X² + 7X - 5X - 35 = 28
X² + 2X = 28+35
X²+2X = 63
X²+2X-63 = 0
Factories this equation . you will get the present Age of Ramu.
HOPE U GOT IT.. :-)
let the present age of Ramu be X.
Before 5 years age of Ramu = (X-5) years.
After 7 years age of Ramu = (X+7) years.
A/Q,
(X-5)(X+7) = 28
X(X+7) - 5(X+7) = 28
X² + 7X - 5X - 35 = 28
X² + 2X = 28+35
X²+2X = 63
X²+2X-63 = 0
Factories this equation . you will get the present Age of Ramu.
HOPE U GOT IT.. :-)
piu32:
Wrong
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