Quantitative Aptitude - Arithmetic Ability Questions

If x = 1 – y and x2 = 2 – y2, then what is the value of xy?

Ram Naresh got two successive discounts, a bag with a list price of Rs.400 is available at Rs. 160. If the second discount is 20%, find the first discount.

A painter can paint a fence in 24 hours. After 6 hours he takes a break. What fraction of the fence is yet to be painted?

A trader bought 10 kg of tea at Rs. 400 per kg. He sold half the quantity at 20% loss and remaining at 10% profit. What was his net profit or loss in percentage?

A shopkeeper by selling 8 iphones, earns a profit equal to the selling price of 3 iphones. His profit percentage is

Ram and Shyam undertook a work for Rs 5600. Ram alone can do the work in 5 days and Shyam alone can do the work in 9 days. If they worktogether, then what will be the difference (in Rs.) in the amount they receive?

If 3x - 10 = -(2x + 5), then the numerical value of (x - 4)3 is

What is the unit digit of 15+25+35+...+205 ?