Question
The respective ratio of the present ages of A and B is
5:3. The present age of C is 20% more than that of B. The sum of the present ages of A, B and C is 58 years. What will be the ratio of the ages of A and B after 12 years?Solution
Let the present ages of A and B be 5x years and 3x years, respectively. Therefore, present age of C = 1.2 × 3 = 3.6x years According to the question, 5x + 3x + 3.6x = 58 11.6x = 58 Or, x = 58/11.6 = 5 Therefore, required ratio = (5x + 12):(3x + 12) = 37:27
1649.98 ÷ 15.48 × 8.12 = ? × 8.16
(11.11 ×  31.98) + 14.15% of 749.99 = ? + 124.34
[√ (121.23) ÷ √ (12100.04)] × √ 80.95 = 3/10 + ? ÷ 4
...- 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.)
1299.999 ÷ 325.018 × 24.996 = ?
At a village trade fair a man buys a horse and a camel together for Rs 51,250. He sold the horse at a profit of 25 % and the camel at a loss of 20 %. If...
?% of (136.31 ÷ 16.97 × 75.011) = 179.98
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.)...
540.11 ÷ 17.98 × 5.14 – 131.9 = √?Â
√ 27556.11  × √ 624.9  – (22.02) 2  =? × 5.95Â
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