Three sets of rice x, y and z are sold for N15.00, N35.00 and N60.00 respectively per kg. It they are mixed in the ratio of 1: 3 : 2, what is the cast per kg of the mixture?

Jendy

6 years ago

Sum of ratios: 1 + 3 + 2 = 6

Cost of x = 1/6 * 15.00 = N2.50

Cost of y = 3/6 * 35.00 = N17.50

Cost of z = 2/6 * 60.00 = N20

Now,

Cost of Mixture per kg = Cost of (x + y + z) = N2.50 + N17.50 + N20 = N40.00

Therefore, Option C is the right answer.

Hope this helps :)