Asked by Anonymous
Mari is 3 times older then nandhini after ten years the sum of thare ages will be 80 find the present age???
Answers
Answered by
PsyDAG
M = 3N
(M+10) + (N+10) = 80
Substitute 3N for M in the second equation and solve for N. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.
(M+10) + (N+10) = 80
Substitute 3N for M in the second equation and solve for N. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.
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