Chain Rule Practice Test 2 with solutions

Question : 22 of 40

Marks: +1, -0

The cost of 8 dozens of eggs is Rs 256. Which calculation is needed to find the cost of 9 eggs?

(9 × 256) × (8 ÷ 12)
(12 × 256) ÷ (8 × 9)
(8 × 256) ÷ (8 × 12)
(9 × 256) × (8 × 12)
(9 × 256) ÷ (8 × 12)

Solution:

Cost of 8 dozen eggs = Rs 256
Cost of 1 egg =

{256}/{8×12}

Cost of 9 eggs =

{256 × 9}/{8 × 12}

= (9 × 256) ÷ (8 × 12)

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