2018 · Q22
1/25 of the students who registered did not appear for the examination, 11/20 of those who appeared passed. If the number of registered students is 2000, the number who passed is
Elementary MathematicsRatio and Proportion
- A1920
- B1056
- C1020
- D864
Explanation
Students who appeared = 2000 × (1 − 1/25) = 2000 × 24/25 = 1920. Those who passed = 1920 × 11/20 = 96 × 11 = 1056, option (B).