Question
If a student scores 30% marks then he is failed by 50
marks, but when he scores 50% marks then he is passed by 30 marks. Find the passing %?Solution
Let the Total marks be x According to the question, 30% of x + 50 = 50% of x -30 30x/100 + 50 = 50x/100 - 30 20x/100 = 80 x = 400 Passing marks = 30% of 400 + 50 = 120 + 50 = 170 Passing Percentage = (170/400) × 100 = 42.5%
More Percentage Questions
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
? = 41.92% of 49.96% of (45.07 1.97 – 4.98 2.03 )
(15.15 ×  31.98) + 30.15% of 719.99 = ? + 124.34
15.2 x 1.5 + 258.88+ ? = 398.12 + 15.9
784.69 + 86.96 ÷ 29.01 = 40.01 + ? + 367.88
(29.892 × √290) + 32.98 × 6.91 = ?
(15.87% of 79.98 + 19.69% of 64.22) × 4.83 = ?
 (3/5) of 3025 + (18² + 12²) = ? + 22.22% of 1125
24.75% of 20.125% of 30.05% of 2196.06 = ?Â
(799.81/64) ÷ (10/799.92) × (129.84/130) = ?
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