Question

A shopkeeper mixes peanuts ( cost per kg -₹25 ) and walnuts ( cost per kg - ₹ 500 ) to make 20 kg mixture, which costs ₹4,300 . How many kg of peanuts and walnuts each are put into the mixture

Answer 1

Answer:

Peanuts = 12kg

Walnuts = 8kg

Step-by-step explanation:

Take peanuts (in kg) = p

and walnuts (in kg) = w

1 peanut costs rs25 and 1 walnut costs rs500

so 25p + 500w = total mixture cost = 4300

and p + w = 20

p = 20-w

25(20-w) + 500w = 4300

500 - 25w + 500w = 4300

500 + 475w = 4300

475w = 4300-500

475w = 3800

w = 3800/475

w = 8

p = 20-w

p = 20-8

p = 12