# wallethub Interview Questions

###### Two trains each 250 m in length are running on the same parallel lines in opposite directions with the speed of 80 kmph and 70 kmph respectively. In what time will they cross each other completely? A. 12sec B. 10 sec C. 11 sec D. 14 sec
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###### The cost price of an article is 64% of the marked price. Calculate the gain percent after allowing a discount of 12%? A. 37.5% B. 36.5% C. 26.6% D. 16.6%
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###### Pipe A and Pipe B can fill a tank in 20 minutes and 30 minutes respectively. Pipe C can empty the tank in 60 minutes. The tank is initially empty. Both the pipes A and B are A. 11.5 minutes B. 12.5 minutes C. 13.5 minutes D. 14.5 minutes
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###### The function f(x) = x3 – 6×2 + 3x + 25 has A. no maxima, but a _minima at x = 1 B. a maxima at x = 1, but no minima C. a maxima at x = 3 and a minima at x = 1 D. a maxima at x = 1 and a minima at x = 3
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