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Start learning 50% faster. Sign in nowLet the maximum marks in each subject be 100. ∴ Total score = 60% of (100 + 100 + 100) = 60% of (300) = 180 Also, 75% marks in a subject correspond to 75% of (100) = 75 Let a boy have scored 3x, 4x and 5x in the three subjects. ∴ 3x + 4x + 5x = 180 ∴ 12x = 180 i.e. x = 15 Hence, his marks in the three subjects are 45, 60 and 75. Hence, he has scored more than 75 in exactly no subject.
In a mixture of 40 liters, the ratio of milk to water is 5:3. How much milk must be replaced by water so that the new ratio becomes 1:1?
The speeds of two trains are in the ratio 7:9. If the first train travels 315 km in 3 hours, how far will the second train travel in 5 hours?
If 6A = 4B = 9C; What is A : B : C?
The ratio between two numbers is 7:8. If each number is increased by 9, the ratio between then become 10:11, find the difference between numbers.
If the ratio of income of Aman and Rahul is 5:4 and the ratio of their expenses is 3:2 and each saved Rs 1600 then find the income of Aman.
If ₹19,500 is divided among ‘A’, ‘B’, ‘C’, and ‘D’ in the ratio 6:8:5:7, then find the share of ‘C’.
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