Quantitative Aptitude - Arithmetic Ability Questions

What is the simplified value of cosec 2A + cot 2A?

The ratio of milk and water in three samples is 1 : 3, 3 : 5 and 11 : 5. A mixture containing equal quantities of all three samples is made. What will be the ratio of milk and water in the new mixture?

Rita buys 5 sarees at an average cost of Rs 2250. If she buys three more sarees at an average cost of Rs 2750, what will be the average (in Rs) of all the sarees she buys?

If x2+1x2 = 98, then x3+1x3 = ?

The third proportional of two numbers 4 and 20 is

The sum of a non-zero number and 9 times its reciprocal is 10. What is the number?

If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is

The length of the diagonal and the breadth of a rectangle are 26 cm and 10 cm respectively. Find its perimeter (in cm).