Quantitative Aptitude - Arithmetic Ability Questions

The difference between the compound interest compounding half yearly for 1 year and the simple interest for 1 year on a certain sum of money lent out at 8% per annum is Rs 64. What is the sum (in Rs)?

Divide 32 into two parts such that the sum of the square of the parts is 674. What is the value of the parts?

If x = 313- 3-13, then 3x2 + 9xis equal to

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

The average of 100 observations was calculated as 35.It was found later, that one of the observation was misread as 83 instead of 53. The correct average is :

What is the simplified value of 22433+393-11253?

In a farm, in addition to 48 hens there are 42 sheep and 11 oxen with some shepherds. If the total number of feet be 224 more than the number of heads, find the number of shepherd.

In ∆DEF measure of angle E is 90°. If secD = 25/7, and DE = 1.4cm, then what is the length (in cm) of side DF?