Quantitative Aptitude - Arithmetic Ability Questions

If x – y – √18 = –1 and x + y – 3√2 = 1, then what is the value of 12xy(x2 – y2)?

In the following question, select the odd letter/letters from the given alternatives.

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

At 10% discount the selling price of an article is Rs 4500, what is the selling price (in Rs) if the discount is 27.5%?

In a triangle XYZ , which of the following conditions is true

There is 40% increase in an amount in 10 years at simple interest. What will be the compound interest of Rs. 30000 after 3 years at the same rate?

The ratio 1 : 5 can be expressed in decimal as

a and b are irrational numbers such that a+b = q is a rational number; then a­b is