Multiple choice

The Table given below presents the number of books on different subjects kept on separate shelves. Subjects with odd and even numbers are of Arts and Science respectively. Subjects Number of books S1 26 S2 29 S3 31 S4 34 S5 36 S6 38 S7 44 What is the ratio of the number of books of S1 and the average number of books per subject?

  1. 13 : 17

  2. 18 : 13

  3. 14 : 17

  4. 14 : 13
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A Correct answer
Explanation

S1 = 26. Total books = 26+29+31+34+36+38+44 = 238. Number of subjects = 7. Average = 238 / 7 = 34. Ratio S1:Average = 26:34 = 13:17.

AI explanation

First, find the total number of books across all subjects by summing the values: 26 + 29 + 31 + 34 + 36 + 38 + 44 = 238. The average number of books per subject is calculated as 238 / 7 = 34. The ratio of the number of books of S1 to the average number of books per subject is 26 : 34. Simplifying this ratio by dividing both sides by 2 gives the final ratio of 13 : 17.

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