Question
A boat can cover 187 km in downstream in 11 hours and
180 km in upstream in 18 hours. Find the speed of boat in still waterSolution
Downstream speed of the boat = 187/11 = 17 km/hr Upstream speed of the boat = 180/18 = 10 km/hr Speed of boat in still water = (17 + 10)/2 = 13.5 km/hr
More Boats and streams Questions
What value should come in place of the question mark (?) in the following question?
(1/3) + (2/5) + (3/4) + (11/10) = 3 �...
√(?) ² = √7396 - √6889
[(11)2 - (12)2 + (5)3]2 = ?
Find the value of 27 ÷ 2 of 16 of [6 ÷ 8 of (6 ÷ 2 + 5)] + (10 ÷ 2.5 + 1)
((1024)n/5 × (42n+1 ))/(16n × 4n-1 ) = ?
What is the value of 143 + 163 + 183 + … + 303?
(20% of 15% of 600 – 6) × 5 + 84 = ?2
63 × 4 = ?2 – 1620 ÷ 5
65% of 102 + 14 = ? – 20
What will come in the place of question mark (?) in the given expression?
216 ÷ 6 + √? - 126 ÷ 7 = 23 X 2
