RRB Junior Engineer / DMS / CMA 2015 · Question 5 of 480

Successive discounts of 40% and 20% are equivalent to a single discount of

Mathematics - Discount

Aa. 60%
Bb. 55%
Cc. 54%
Dd. 52%Correct

Answer: D. d. 52%

Explanation

Single discount are equivalent to sucessive discounts of 40% and 20% = 100-IQQx 100~40x '100-20 100 = 100-48= 52%

Source: Arihant RRB JE Solved Paper 26-Aug-2015 (3rd Shift), Q91–150 — published solved-paper compilation (Q1–90 technical not included in this source) · memory-based

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