The table gives the number of students in each class and the percentage of students in the class who like Hockey, Tennis, Chess and Golf.
| Class | Number of Students | Hockey | Tennis | Chess | Golf |
| A | 260 | 70% | 65% | 70% | 60% |
| B | 180 | 90% | 52% | 85% | 40% |
| C | 240 | 90% | 80% | 60% | 80% |
| D | 60 | 80% | 70% | 50% | 30% |
How many students in all the given classes like Hockey?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 608.
Number of students who like Hockey in class A = 70% of 260
⇒ (70/100) × 260 = 182
Number of students who like Hockey in class B = 90% of 180
⇒ (90/100) × 180 = 162
Number of students who like Hockey in class C = 90% of 240
⇒ (90/100) × 240 = 216
Number of students who like Hockey in class D = 80% of 60
⇒ (80/100) × 60 = 48
Total number of students who like Hockey in all the classes = 182 + 162 + 216 + 48
⇒ 608