RRB NTPC 19 April 2016 (Shift 1)

The concept of the game of eliminating an opponent by touching.

The mean of 22 observations is 10. Two more observations are included and the new mean becomes 11. The mean of two new observations is

An angle is 10° more than its complement. Find the greater angle.

Neelam and Manisha starting from the same place run at a rate of 7 kmph and 9 kmph respectively. What time will they take to be 12 km apart, If they walk in the same direction?

Delhi metro covers a distance in 40 minutes, if it runs at a speed of 48 kmph on an average.Find the speed at which the train must run to reduce the time of journey to 32 minutes:

The mean of a distribution is 13 and the standard deviation is 7. What is the value of the coefficient variation?

A car stops on applying brakes mainly due to force.

Statements followed by some conclusions are given below.
Statements:
1. Knowledge is not a skill. It is learning and experience.
2. The illiterate are not those who cannot read and write but those who cannot learn.
Conclusions:
I. Those who cannot read and write are literate.
II. Knowledge and skill are two different things.
Find which of the given conclusions logically follows from the given statements.

Statements followed by some conclusions are given below.
Statements:
1. Depleting natural resources is a major concern in our country.
2. Unless we go for renewable energy sources in a big way, increase in population being a heavy bui-den on the energy resources. will reduce the quality of life.
Conclusions:
I. Depleting resources impacts quality of life.
II. Use of renewable energy sources is a solution to counter increase in population. 

Find which of the given conclusions logically follows from the given statements.

Quartz used in clocks is