Question

Directions: The line graph shows the monthly average Sensex report from May'14 to November'14.

What is the ratio between the highest reading and lowest reading of the Sensex report during the given period? (approximately)

• A. 7 : 5
• B. 11 : 10
• C. 25 : 23
• D. 34 : 31
• E. 43 : 39

Hint:

Identify the highest and lowest points on the graph, divide the highest by the lowest, and compare the decimal value to each option.

Answer 1

The Correct Option is D

From the graph, the highest reading is in June at 10631.12, and the lowest reading is in August at 9734.22.

Required ratio = \(\dfrac{10631.12}{9734.22} \approx 1.0921\).

Now check this against the given options by converting each to a decimal:
7 : 5 = 1.400
11 : 10 = 1.100
25 : 23 = 1.087
34 : 31 = 1.097
43 : 39 = 1.103

Comparing 1.0921 with each of these, the closest value is 34 : 31 (1.097), which is nearer to the computed ratio than any of the other options, including 11 : 10 (1.100) and 25 : 23 (1.087).

So the ratio between the highest and the lowest reading is approximately 34 : 31, option (d).

Discrepancy note: the publisher's key marks option (b) 11 : 10 for this question. Recomputing the exact ratio of the highest to lowest reading (10631.12 : 9734.22 = 1.0921) shows option (d) 34 : 31 (1.0968) sits closer to it than option (b) 11 : 10 (1.100) or option (c) 25 : 23 (1.087), so (d) is used here as the verified answer.