after 12 years manoj will be 3times as old as he was 4 years ago. find his present age

5 answers

Given, Age of manoj after 12 years = 3 × Age of Manoj 4 years ago
(x + 12 ) = 3 (x – 4)

x + 12 = 3x – 12
x -x + 12 = 3x-x -12
12 = 2x -12
12 + 12 = 2x -12 + 12
2x = 24

2x/2 = 24/2
x = 12

Thus, present age of manoj is 12 years.
Check:
12+12=24
3(12-4)=3*8=24
So answer is correct.
After 32years Rajesh 's age becomes 5 times as h was old in 8 years ago find present age!
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