Exams

Select the missing number?

The ratio of total surface area and volume of a sphere is 1 : 7. This sphere is melted to form small spheres of equal size. The radius of each small sphere is 1/6th the radius of the large sphere. What is the sum (in cm2) of curved surface areas of all small spheres?

The following Bar-diagram shows total number of males and females in 5 different organisations. Study it carefully to answer the questions.

Males from organisations A and B together form what percent of total number of males from organisations C, D and E together?

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

The old man said to me, "Life has taught me some hard lessons."

A dinner set is quoted for Rs 1500. A customer pays Rs 1173 for it. If the customer got a series of two discounts and the rate of first discount is 15% then the rate of second discount was,

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

S_RTR_ST_T_S

Coefficient of x in (x + 11)(3 -­ 5x) is _____.

Which type of pathogen causes the water­borne disease Hepatitis­A?