Question

The following graph shows sales data of two products X and Y from 2015 to 2020 in Kgs. Study the graph of sales data carefully and answer the questions given below:

In how many years is the sales of product X higher than 45 percent of the average sales of product Y?

• A. 5
• B. 4
• C. 6
• D. 3

Hint:

Find 45 percent of the average Y sales, then count how many years X beats that number.

Answer 1

The Correct Option is B

Step 1: Instead of finding the average first, work with the total. Total sales of Y over 6 years = $439050$ kg.
Step 2: The threshold is 45 percent of the average, so scale the total directly: $0.45 \times 439050 / 6 = 197572.5/6 = 32928.75$ kg.
Step 3: Check each year's X value against this threshold: only 2015 (23230) and 2016 (32230) fall below it; the remaining four years, 2017 through 2020, exceed it.
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