RRB GROUP-D QUANT QUIZ

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Question 1:

Find the least square number which is exactly divisible by 4, 9 and 14.

Question 2:

A racing car going at an average speed of 150 km/hr takes 12 minutes to complete a lap on a racing track. By how much should it increase its speed ( in km/hr ) to complete the lap in 10 minutes?

Question 3:

A number is first increased by 10% and then increased by 20%. Find by what percent the original number is increased?

Question 4:

If x+y=12, and xy=18, what is the value of x3+y3

Question 5:

The cost of 20 articles is equal to the selling price of 50 articles. Find the gain or loss percent?

Question 6:

Working Efficiency of Ram and Shyam for completing a piece of work are in the ratio 6:7. The number of days to be taken by them to complete the work will be in the ratio

Question 7:

An amount of money at compound interest grows up to Rs. 3,840 in 4 years and up to Rs. 3,936 in 5 years. Find the rate of interest :

Question 8:

Two taps A and B can separately fill a cistern 10 minutes and 15 minutes respectively and when the waste pipe C is opened, they can together empty it in 18 minutes. The waste pipe can empty the full cistern in?

Question 9:

A car moves a distance of 480 km with uniform speed. The number of hours taken for the journey is 56 of the number representing speed in km/h. The time taken (in hours) to cover the distance is:

Question 10:

X can do a job in 10 days, Y in 15 days and Z can do it in 18 days. Y and Z begin the work but have to leave after 4 days. How many days will X take: