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)?

What is the value of Sin 30° - Cosec 45°?

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

What will be the average of the first 5 positive even numbers divisible by 9?

Which of the following is correct?

A root of equation ax2 + bx + c = 0 (where a, b and c are rational numbers) is 5 + 3√3. What is the value of (a2 + b2 + c2)/(a + b + c)?

If 123 x 356 = 43788, then 1.23 x 0.356 = ?

A, B and C can do job in 9, 12 and 36 days respectively if they worked alone. A leaves after they have worked together for 3 days. In how many days can B and C do the rest of the job?