Quantitative Aptitude - Arithmetic Ability Questions

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

The reciprocal of the sum of the reciprocals of 3/8 and 8/11 is:

If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is

If cos 45° - ­ sec 30° = x, then value of x is

Find out the odd word/letters/number/number pair from the given alternatives.

Find the odd word/letters/number pair from the given alternatives.

Rs 9000 is divided among P, Q and R in the ratio of 5 : 6 : 7. What is the share (in Rs) of R?

If the shopkeeper sells an item at Rs 450 which is marked as Rs 600, then what is the discount he is offering?