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 |
The number of books of S3 is what percent (correct to one decimal place) of the average number of Science books?
Answer & explanation
Correct answer: option 1
Books with even number are science books .
Average number of science books = \(\frac{29 + 34 + 38}{3}\)
= \(\frac{ 101}{3}\)
Number of books of S3 = 31
Required percentage = \(\frac{31× 3 }{101}\) × 100
= 92.079%
= 92.1% (correct to one decimal place)