Problem Solving MCQ Set 41

Question: A passenger train covers the distance between stations X and Y, 50 minutes faster than a goods train. Find this distance if the average speed of the passenger train is 60 kmph and that of goods train is 20 kmph.

1. 20 kms
2. 25 kms
3. 45 kms
4. 40 kms

Question: Yana and Gupta leave points x and y towards y and x respectively simultaneously and travel in the same route. After meeting each other on the way, Yana takes 4 hours to reach her destination, while Gupta takes 9 hours to reach his destination. If the speed of Yana is 48 km/hr, what is the speed of Gupta?

1. 72 kmph
2. 32 mph
3. 20 mph
4. None of these

Question: What is the value of 1*1! + 2*2! + 3!*3! + ............ n*n!, where n! means n factorial or n(n-A(n-2)...1

1. n(n-A(n-A!))
2. (n+A!)/(n(n-A))
3. (n+A! - n!)
4. (n + A! - 1!)

Question: By walking at 3/4th of his usual speed, a man reaches office 20 minutes later than usual. What is his usual time?

1. 30 min
2. 60 min
3. 70 min
4. 50 min

Question: A merchant marks his goods in such a way that the profit on sale of 50 articles is equal to the selling price of 25 articles. What is his profit margin?

1. 2 50%
2. 5%
3. 100%
4. 66.67%

If the letters of the word CHASM are rearranged to form 5 letter words such that none of the word repeat and the results arranged in ascending order as in a dictionary what is the rank of the word CHASM?

1. 24
2. 31
3. 32
4. 30