Quantitative Aptitude - Arithmetic Ability Questions

The average of 7 numbers is 30. If the average of first three numbers is 25 and that of last three numbers is 35, then what is the fourth number?

Raghu's tanker can fill a cistern in 4 hours. After half the cistern is filled, three more similar tankers are opened. What is the total time taken to fillthe cistern completely?

 What is the value of (cosec45 + √3/2) ?

The number of solutions of the pair of linear equations x + 2y - 8 = 0 and 2x + 4y = 16 is

If  a+1/a = 3, then a3+1a3?

The perimeter of a triangle is 28 cm. If the length is 5/2 times its breadth, find the length and breadth of the triangle.

If the shopkeeper sells an item at Rs 1000 which is marked as Rs 1250, then what is the discount he is offering?

26% of a number is 65. What is the number?