Quantitative Aptitude - Arithmetic Ability Questions

The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age

If 4x2 - 12x + k is a perfect square, then the value of k is

While selling a shirt, a shopkeeper gives a discount of 7%. If he gives discount of 9% he earns Rs. 15 less on profit. The market price of the shirt is :­

Select the odd word from the given alternatives.

What is the value of (cot60 + 1/√3) ?

The lengths of the two diagonals of a rhombus are 8 cm and 15 cm respectively. Find its area (in cm²).

What should be added to 3(x­ - 2y) to obtain 2(3x + y) -­ 5(2x + 3)?

From point P, at 6 : 30 pm, a train starts moving towards Q with the speed of 40 km/hr. Another train starts moving from point Q at 7:30 p.m. towards point P at the speed of 60 km/hr. Both of them meet at 11:30 p.m. at point R. What is the ratio of PR and QR?