Question
A boat covers 13 km upstream in 52 min. If the speed of
the current is 6 km / h, then in how much time will it cover 40 km downstream?Solution
Let the speed of boat in still water =B and speed of stream =S Speed of boat in upstream =B-S=13Γ60/52 =15km/h S=6km/h B=21km/h Speed of boat in downstream =B+S=27km/h Take time cover 40km in downstream =40/27 hr.
More Boats and streams Questions
40% of (362 Γ· 0.05) = ?
- What will come in the place of question mark (?) in the given expression?
(15 - 19 + 10) Β² + ? = 45 X 2 38 β 3 2 + 5 2 + 6 2 = ? Γ 6Β
{(700 Γ· 20) Γ 40} β 30 Γ 18 = ?% of 1000
What will come in the place of question mark (?) in the given expression?
12% of 800 + 15% of 600 + 14% of 500 = ?2
9 Γ 4 ? Γ· 16 = 144
721 +21 x 9 - 118 = ? + 82
118 × 6 + 13 + 83 = ?
192.251 + 326.233 + 125.021 + 19.273 = ?
((9.77)0- γ(0.1)γ(-1))/(γ(6/24 )γ(-1)Β Γ(3/2)3+ γ((-2)/6)γ(-1) ) = ?
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