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90% of the students in a school passed in English, 85% passed in Mathematics and 150 students passed in both the subjects. If no student failed in both the subjects, find the total number of students.
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- 120
- 220
- 200
- 300
Correct Option: C
If the total number of students be x, then
| x = | + | - 150 | 100 | 100 |
⇒ 100x = 90x + 85x – 15000
⇒ 175x – 100x = 15000
⇒ 75x = 15000
⇒ x = 200
