Question
A boat can cover 180 km in downstream in 9 hours and 110
km in upstream in 11 hours. Find the speed of boat in still water.Solution
Downstream speed of the boat = 180/9 = 20 km/hr Upstream speed of the boat = 110/11 = 10 km/hr Speed of boat in still water = (20 + 10)/2 = 15 km/hr
More Boats and streams Questions
- Select the number from among the given options that can replace the question mark (?) in the following series.
17, 18, 22, 31, 47, ___ - Which letter and number cluster will replace the question mark (?) to complete the given series?
LT6, KU12, IW24, FZ48, ____ - A series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.
57, 59, 56, 61, 54, ___ - Which letter-cluster will replace the question mark (?) in the following series?
RGV, UME, ?, AYW, DEF - Which letter-cluster will replace the question mark (?) in the following series?
NPQR, OORQ, PNSP, ____, RLUN
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