Chain Rule Practice Test 2 with solutions

Cost of 5 kg of apples = Rs 450
Cost of 1 kg of apples = $\frac{450}{5}$
Cost of 8 kg of apples = $\frac{450}{5}\times 8$ = Rs 720
Cost of 12 dozen mangoes = Rs 4,320
Cost of 1 dozen mangoes = $\frac{4320}{12}$
Cost of 8 dozen mangoes = $\frac{4320}{12}88$
= Rs 2,880
Cost of 4 kg oranges = Rs 240
Cost of 1 kg orange = $\frac{240}{4}$
Cost of 8 kg oranges = $\frac{240}{4}\times 8$ = Rs 480
Total cost = 720 + 2,880 + 480 = Rs 4,080