Question
On Monday, if difference between the time taken by the
boat to go upstream and the time taken by the boat to go downstream is 15 hours, find the total time taken by the boat to go upstream and downstream. Study the following table carefully and answer the given questions: Distance Upstream = Distance Downstream Total time taken = Downstream time + Upstream timeSolution
Let the speed of boat be x km/hr. According to question, => [400/(x-3)] - [400/(x+3)] = 15 => x = 13 km/hr Total time taken = (400/10) + (400/16) = 65 hrs
More DI Questions
(98.999)2 - (9.9)2 - (14.9)2 = ?
40.05% of 210.05 – 10.15% of 109.99 × 5.02 = ?
14.2% of 7200 + 2.8% of 6400 =?
√3970 × √730 - √2400 = ?
25.13% of 39.89% of 74.78% of 60.21% of ? = 44.89
15.22 × 9.99 + 150.15 = ?
Find the approximate value of Question mark(?). There is no requirement to find the exact value.
? = 499.87 – 24.95 × 14.04 + (20.15)²
- 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.)
(98.03 + 186.98) ÷ 19.211 = 89.9 – 20.23% of ?
4821.49 - 3123.87 + 5643.92 + ? = 11500.68
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