Question
The current ages of Raman and Raghav are in the ratio of
5:4. In six years, their ages will have a ratio of 11:9. What was the ratio of their ages ten years ago?Solution
Let present age of Raman and Raghav be 5x and 4x years, respectively. According to question, (5x + 6) / (4x + 6) = 11/9 45x + 54 = 44x + 66 x = 12 Raman’s present age = 5x = 5×12 = 60 years Raghav’s present age = 4x = 4×12 = 48 years Required ratio = (60 – 10) : (48 - 10) = 50:38 = 25:19
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
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.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
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.)...
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