Q1. 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
A ₹3,300, ₹4,950, ₹5,350
B ₹3,300, ₹4,800, ₹5,500
C ₹3,200, ₹4,700, ₹5,600
D ₹3,600, ₹4,800, ₹5,600
EXPLANATION
B
In 2020:
Cost of component A = 90/360 * 12000 = 3000
Cost of component B = 120/360 * 12000 = 4000
Cost of component C = 150/360 * 12000 = 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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