Question
When travelling downstream, a boat takes 6.25 hours to
travel 225 km. If the speed of the stream is (1/3)rd of downstream speed of the boat, then find the time taken by the boat to cover 240 km in still water.Solution
Downstream speed of the boat = 225/6.25 = 36 km/hr Speed of the stream = 36 x (1/3) = 12 km/hr So, speed of the boat in still water = 36 – 12 = 24 km/hr Required time taken = 240/24 = 10 hours
More Boats and streams Questions
1885 ÷ 64.98 + 7.29 + ? = 69.09
212 + 14 × 23 – 28 × 15 = ? Â
(22² × 8²) ÷ (92.4 ÷ 4.2) =? × 32
567-4824 ÷ 134 =? × 9
Determine the value of 'p' in the expression.
28 ÷ 22p + 1 = 43Â
What will come in place of (?) in the given expression.
(15) ² - (13) ² = ?? = 6.25% of 240 + 25 2 + 17 2 – 16 × 17
35% of 840 + 162 = ? – 25% × 300
(7/5) × (3/4) × (5/9) × (6/7) × 3112 = ?
1024 ÷ 16 + 800 ÷ √64 + ? = 200 * 2
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