Chain Rule Practice Test 1 with solutions

Question : 10 of 40

Marks: +1, -0

The cost of 4 calculators and 2 stencils is Rs 6,200. What is the cost of 10 calculators and 5 stencils?

Solution:

Cost of 4 calculators and 2 stencils = Rs 6,200
Cost of 2 calculators and 1 stencil =

{6200}/2

= Rs 3,100
Cost of 10 calculators and 5 stencils = 3,100 × 5 = Rs 15,500

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