Average speed for the whole trip
In travelling from city A to city B, John drove for 1 hour at 50 mph as well as for 3 hours at 60 mph. What was his average speed for the whole trip?
A: 50
B: 53.5
C: 55
D: 56
E: 57.5
Expected delivery within 24 Hours
A shepherd has 1 million sheep at beginning of Year 2000. The numbers grow by x% (x > 0) throughout the year. A famine hits his village in the next year and many of his sheep die. The sheep population reduces by y% during 2001 and at the beginn
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A and B together can do the piece of work in 30 days. A having worked for 16 days, B finishes remaining work alone in 44 days. In how many days shall B finish entire work alone?
A salesman sells two types of trousers: cotton and woollen. A pair of cotton trousers is sold at 30% profit and pair of woollen trousers is sold at 50% profit. The salesman has computed that if he sells 100% more woollen trousers than cotton trous
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Two trains running in opposite directions cross the man standing upon the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is
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