Quantitative Aptitude - Arithmetic Ability Questions

Rs 11,550 has to be divided between X, Y & Z such that X gets 4/5 of what Y gets and Y gets 2/3 of what Z gets. How much more does Z get over X (in Rs)?

Find 150% of X, if X is the least number which when divided by 6, 7, 8, 9 and 12 leaves remainders 2, 3, 4, 5 and 8 respectively.

Pranita got 30 marks more in Math than what she got in Science. Her Math marks are 60% of the sum of her Math and Science marks. What are her Science marks?

Cost price of a calculator is Rs 495. If the profit percentage is 40%, then what is the value (in Rs) of profit?

Rohit wants to earn 21% profit on a belt after offering 45% discount. By how much percentage more should he mark the price of his article above the costprice?

When a discount of 20% is given on a lunch buffet, the profit is 42%. If the discount is 15%, then the profit is

When a number is increased by 69, it becomes 103% of itself. What is the number?

If cot A = n/(n + 1) and cot B = 1/(2n + 1), then what is the value of cot (A + B)?