Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
The time taken by a boat to cover a certain distance upstream is equal to \(\frac{4}{7}\) of the time taken by it to cover three times the same distance downstream. The speed of the stream is 7.5 km/h. How many (total) hours will the boat take to go 42 km upstream and 54 km downstream?
1
4.2
2
3.5
3
4
4
More than one of the above
5
None of the above