Exams

A, B and C can complete a task together in 10 days. A and B would need 12 days if only the two of them worked, while B and C would take 20 days if only the two of them worked. If B worked alone, how many days would she take to complete the task?

Which of the following is a vertebrate?

In the morning X and Y are walking towards each other in a park. When they meet, Y's shadow falls upon X. In which direction was X facing?

If Sin4A - Cos4A = 1 then (A/2) in degrees is 0° < A ≤ 90°

If  a+1/a = 3, then a3+1a3?

Which of the following carries blood away from the heart to different body parts?

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

BC, OP, DE, QR, ?

If the volume of a cylinder is 385 cubic cm and height is 10 cm, find its radius?