Question
Ratio of speed of boat in downstream and speed of stream
is 9:5, if speed of current is 10 km/hr, then find distance travelled (in km) upstream in 6 hours.Solution
Let speed of downstream and speed of stream be 9x and 5x respectively. Speed of current => 5x = 10 => x = 2 km/hr Downstream speed = 9 × 2 = 18 km/h Speed of boat = 18 - 2 = 16 km/hr Upstream speed = 16 - 2 = 14 km/h Distance travelled upstream in 6 hr = 14 × 6 = 84 km
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
