Question
If ‘A’, ‘B’ and ‘C’ are in proportion in the
given order while ‘A’ = 27 and ‘B’ = 63, then find the value of ‘C’.Solution
Given, A = 27
And, B = 63
Since, ‘A’, ‘B’ and ‘C’ are in proportion.
So, (A/B) = (B/C)
So, C = (63 × 63)/27 = 147
A man can go on a motorboat with a speed of 18 km/hour in still water to a certain upstream point and return to the starting point in a river that flows...
A boat travels from point A to point B and back. The river has a uniform current. If it takes 3 hours to travel from A to B downstream and 5 hours to re...
The speed of the boat in still water is 10 km/hr and the speed of the stream is 5 km/hr. A boat goes 75 km downstream with its usual speed but at the ti...
Speed of boat is 10 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 54 km downstream?
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 11:5:2, respectively. If...
A boat running downstream covers a distance of 45 km in 9 hrs and covering the same distance upstream in 15 hrs. What is the speed of a boat in still wa...
A man’s speed with the current is 18 km/hr and the speed of the current is 7 km/hr . The man’s speed against the current is:
A boy can swim a certain distance downstream in 2 hours and return in 3 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
A boat covers 132 km downstream in 3 hours and 96 km upstream in 4 hours. The boat takes 8 hours to travel 'D' km upst...
The downstream speed of a boat is 20 kmph more than its upstream speed and the sum of the downstream and upstream speeds is 60 kmph. The boat covers (x...
Relevant for Exams:
