Questions

If a+1a=1,then the value of a2-a+1a2+a+1 is a≠0

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Life is full of ______ types of experiences.Strange, in fact, are the ways of God.If a man is happy today, he may be ______ unhappy the very next day.Some ______ are pleasant and joyful while others are full of ______ and pain.If at one time a person finds himself on top of the world, at the ______ time he is depressed and downcast.

at the ______ time he is depressed and downcast.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

When the kerosene burned, the fuel in the tank below would be __________ pressure, and __________a small circular flame would appear in the burner.The valve had to be opened to let more kerosene vapour to the burner and pumping resumed. With the increase in pressure, the burner flame would spread _________ a loud noise. To lower the flame,the valve had to be _________ opened to reduce the pressure and then tightened until the desired flame size was achieved. _________ you wanted the flame to be bigger, you had to hit the piston again. Pump stoves are still in vogue.

was achieved. _________ you wanted the flame

The market structure called monopoly exists where there is exactly ______ seller in any market.

Metals are placed on which side of the Modern Periodic table?

What is an endothermic reaction?

What is the distance between the points (4,7) and (­1,­5)?

According to Stockholm International Peace Research Institute, with spending of $55.9 Billion in 2016, which country became world’s fifth-largest military spender?