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Question 4
The cost of the three components A, B and C of an electronic machine worth ₹12,000 in 2020 is given as a Pie-chart as shown below :
In the following year, the cost of these three components A, B, and C increased by 10%, 20%, and 10% respectively. The cost of the three components A, B, and C respectively in 2021, was
Solution
In 2020:
Cost of component A = $$\frac{90}{360}\times12000=3000$$
Cost of component B = $$\frac{120}{360}\times12000=4000$$
Cost of component C = $$\frac{150}{360}\times12000=5000$$
In 2021:
Cost of component A = 1.1*3000 = Rs 3300
Cost of component B = 1.2*4000 = Rs 4800
Cost of component C = 1.1*5000 = Rs 5500
The answer is option B.
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