Quantitative Aptitude - Arithmetic Ability Questions

Ram lent Rs. 6,000/- to Shiva for 3 years and Rs. 8,000/- to Krishna for 5 years at the same rate of simple interest per annum. He got a total interest of Rs. 5,220 from both. Find the rate of interest per annum.

Raj purchased two laptops, first for Rs 42500 and the second for Rs 36200. He sold first laptop at a profit of 12% and the second laptop at a loss of 12%.What is the overall profit or loss?

Starting with 8000 workers, the company increases the number of workers by 5%, 10% and 20% at the end of first, second and third year respectively. The number of workers in the fourth yearwas

A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is

If A, B and C can do a job working alone in 12, 18 and 36 days respectively. They all work together for 2 day, then B quits. How many days will A and C take to finish rest of the job?

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

If cotA = x, then the value of x is

If the value of 3-1.732, then calculate the value of 243-12108-147