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Start learning 50% faster. Sign in nowUpstream speed = 190/5 = 38 km/h Downstream speed = 416/8 = 52 km/h Speed of boat in still water = (38 + 52)/2 = 45 km/h Speed of stream = (52 – 38)/2 = 7 km/h Increased speed of boat in still water = 45 + 4 = 49 km/h Decreased speed of stream = 7 – 2 = 5 km/h Required time taken = [528/(49 – 5)] + [540/(49 + 5)] = 12 + 10 = 22 hours
Amit and Bheem can individually finish a task in 10 days and 15 days, respectively. If they work together to complete the task an...
116.90 ÷ (77.81 ÷ 6.06) + 6.32 = (15.12% of ?) ÷ 4.652
14.12 × 21.98 + 25.22% of 195.99 = ? × 50.9
45.22% of (71.9 x 5.01) + 69.97 =?
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.)...
Find the value of ‘x’ in the given expression:[144 + {2 × (13 ÷ 0.5 × 6 – 3) ÷ 4} – 6.5] = x
1587.9 + 9650.98 + 10612.8 =?3 - 2536.67
65.22 of 359.98% + 459.99 ÷ 23.18 = ?
(1560.23 ÷ 25.98) + (768.32 ÷ 23.9) + 1814.11 = ?