Quantitative Aptitude - Arithmetic Ability Questions

Working together, pipes A and B can fill an empty tank in 10 hours. They worked together for 4 hours and then B stopped and A continued filling the tank till it was full. It took a total of 13 hours to fill the tank. How long would it take A to fill the empty tank alone?

In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145

If PA and PB are two tangents to a circle with centre O such that ∡APB = 80°. Then ∡AOP = 

In a triangle ABC, OB and OC are the bisectors of angles ∠ B and ∠C respectively. ∠BAC = 60°. Then the angle ∠BOC will be

In the given figure, P  is the center of the circle. If QS = PR, then what is the ratio of angles RSP to the TPR ?

Find the radius of the circle if the length of its arc is 33 cm whose corresponding central angle is 90° ?

To get number 40, the number 56/9 should be multiplied with

3cosA is equal to