Quantitative Aptitude - Arithmetic Ability Questions

If x = √2+1, then the value of x4-1/x4

If 7A = 5B = 2C; find A : B : C.

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

A dealer marks his goods 20% above their cost prices. Then,he allows such a discount on the marked price so that he makes a profit of 8%. The rate of discount is:

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

The original price of a TV set is Rs. 6,000. If the price is discounted by 20% and then raised by 10% for service contract, the price charged by the shopkeeper is

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?

The labourers A, B, C were given a contract of Rs. 750 for doing a certain piece of work. All the three together can finish the work in 8 days. A and C together can do it in 12 day, while A and B together can do it in 13 1/3 days. The money will be divided in the ratio