Exams

If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey?

The radius of base of solid cone is 9 cm and its height is 21 cm. It cut into 3 parts by two cuts, which are parallel to its base. The cuts are at height of 7 cm and 14 cm from the base respectively. What is the ratio of curved surface areas of top, middle and bottom parts respectively?

Divide 150 into two parts such that the sum of their reciprocals is 3/112. Calculate both the parts.

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

POT, OMS, NKR, MIQ, ?

Which among the following hormone can be used as a drug to treat cardiac arrest and some other cardiac problems?

What least value must be assigned to '*' so that the numbers 451 *  603 is exactly divisible by 9?

If cot A = [sin B/(1 – cos B)], then what is the value of cot 2A?

The task of any business is to deliver _ at a profit.