Question
The speed of a boat in still water is 11 km/hr. It
covers (upstream) a distance of 40 km in 5 hours. The speed (in km/hr) of the stream isSolution
Upstream speed of boat = Distance/Time = 40/5 = 8 km/hr Therefore, speed of current = 11 – 8 = 3 km/hr
640Â Â Â 1920Â Â Â 240Â Â Â 720Â Â Â 92Â Â Â 270
12, 13, 21, 44, 116.5, 340.5
54, 58, 67, 92, 173, 262Â
Find the wrong number in the given number series.
3, 7, 22, 89, 445, 2677
- Find the wrong number in the given number series.
5, 10, 20, 35, 80, 160 Find the wrong number in the given number series.
3, 8, 18, 40, 78, 158- Find the wrong number in the given number series.
-1, 48, 112, 193, 293, 416 7, 27, 10, 32, 17, 37
Find the wrong number, in the given number series,
432, 429, 420, 408, 392, 372
552, 448, 380, 306, 240, 182