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ans

by smashinonions » Sun Jun 22, 2008 5:53 pm
P + K + M = 162

given,

P = 2K ---- A

P = 1/3 M ----- B


from A and B,

2K = 1/3 M

or M = 6K

now,

2K + K +6K = 162

or K = 18

and M = 6K = 6 * 18 = 108

so M - K = 108 -18 = 90 (ANS)
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