Exams

If price of an article decreases from Rs. 25 to Rs. 20, quantity demanded increases from Q1 units to 1500 units. If point elasticity of demand is -1.25, find Q1?

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Children play in the playground.
(II) It gives them a different approach of problem solving and decision making.

Conclusions:
(I) Playing outdoor is very necessary for overall development of child.
(II) There should be balance between playing and studying for a child.

In ΔPQR, PQ = PR = 18 cm, AB and AC are parallel to lines PR and PQ respectively. If A is the mid-point of QR, then what is the perimeter (in cm) of quadrilateral ABPC?

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

Pipe A can fill an empty cistern in 4 hours while along with Pipe B it can fill it up in 3 hours. Only Pipe A is turned on for an hour after which Pipe B is also turned on. How much total time will it take to fill up the cistern?

Headquarters of Inland Waterways Authority of India (IWAI) is in

The number of sides of a regular polygon whose exterior angles are each 40 deg is

Aluminium oxide is ___ in nature.