A trail mix company keeps costs down by employing the

chetan2u,

I tried to do something like this

75 is the total and when divided as per ratio, they would be 50 : 20 : 5

Since the reduction would be evenly distributed trough out for all the nuts, i took LCM for 10, 4, 1 and LCM is 20 .

So decided that the percentage discounted would be multiple of 20 i.e from options the possible values are 20, 40

when i applied rule that peanuts should be half for 20 % decrease, the ratio will be 30 : 12: 3 - which satisfies the condition

now taking 40% decrease, the ratio will be 20 : 8: 2 which constitute exactly half - which does not satisfy the condition that peanuts should be more than half.

So it should be 20 %

Is this approach right ??