Question
The speed of current is 18 km/hr. If the speed of the
boat in still water had been 7 km/hr more than the original speed, then it would take 8 hours to cover 440 km in downstream. Find the original speed of the boat in still water (in km/hr).Solution
ATQ, Let the speed of the boat in still water be ‘x’ km/hr. According to the question, (x + 7 + 18) = 440 / 8 Or, x + 25 = 55 So, x = 55 - 25 = 30 km/hr Final Answer: 30 km/hr
More Boats and streams Questions
- Find the wrong number in the given number series.
30, 39, 23, 47, 12, 61 Find the wrong number in the given number series.
8, 16, 24, 32, 32, 64
Find the wrong number in the given number series.
9, 17, 33, 61, 118, 231
- In the given number series, find the wrong number.
5, 10, 15, 20, 25, 31, 35 In each of the following number series, one term is wrong. Find the wrong term.
3, 5, 8, 13, 21, 33, 55
1000, 200, 56, 24, 12, 7.2
81, 154, 124, 197, 167, 235
- Find the wrong number in the given number series.
5, 8, 18, 24, 37, 48 178, 184, 196, 216, 246, 286
- Find the wrong number in the given number series.
9, 13, 22, 47, 96, 197
Relevant for Exams:
