Question
Two students appeared in an exam and one secured 12
marks more than the other. If marks of student who got more marks is 52% of the sum of the marks of both of them, then find the marks obtained by them.Solution
Let total marks obtained by both of them is x and y respectively. x – y = 12 And, x = 0.52 × (x + y) x = 0.52 × (12 + y + y) x = 0.52 × (12 + 2y) x = 6.24 + 1.04y 12 + y = 6.24 + 1.04y 0.04y = 5.76 y = 144 x = 144 + 12 = 156
More Percentage Questions
25% of 1000 + 10% of 150 – 22 × ? = 45
5760 ÷ 45 × 15 = ?
((0.1)3+ (1.8)3+ (1.1)3 - 0.3 ×1.8 ×1.1)/((0.1)2+ (1.8)2+ (1.1)2- (0.18)- ...
√ 729 × 5 – 220 % of 15 + ? = 120% of 160
1111.25 × 9.05 + 2323.23 × 9.05 – 2121.37 ×9.05 =?
√529 + √64 + 92 = ?
Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?
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