Chain Rule Practice Test 3 with solutions

Question : 10 of 10

Marks: +1, -0

The cost of 8 fans and 14 ovens is Rs 36.520. What is the cost of 12 fans and 21 ovens?

Solution:

Cost of 8 fans and 14 oven = Rs 36.520
Cost of 4 fans and 7 oven =

{36.520}/{2}

= Rs 18.260Cost of 12 fans and 21 oven = 18.260 × 3
= Rs 54.780

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