Question
Marks scored by A and B in a test are in the ratio 13:6
respectively. If B had scored 4 more marks, then marks scored by A would be 30% more than that of B. Find the difference between actual marks scored by A and B.Solution
Let actual marks scored by A and B be 13x and 6x respectively. Difference between the marks scored by A and B = 13x – 6x = 7x According to question, => (6x + 4) × 1.3 = 13x => 7.8x + 5.2 = 13x => 5.2x = 5.2 => x = 1 Required difference = 7x = 7
More Ratio and proportion Questions
244.98% of 189.98% of 599.99 + 199.98 = ?
22.11 × 7.02 – 70.12% of 209.69 + 227.21 = ?
888.191 + 2.0001 X 7.961= ?
((341.789)1/3 × (0.0049)1/2)× 429.798/6.88 =?
49.99% of 5400 + 923=?
10562.41 - 7893.78 + 9647.35 + ? = 19500.24
- 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.)
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.)...
5555.05 + 500.05 + 5000.005 + 5.005 =?
(? + 11.86) X 14.89 = 19.89% of 2399.89
