Quantitative Aptitude - Arithmetic Ability Questions

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

20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?

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.

Raghunandan sells a machine for Rs 45 lakhs at a loss. Had he sold it for Rs 55 lakh, his gain would have been 9 times the former loss. Find the cost price of the machine.

If x + (1/x) = √13, then what is the value of x5 – (1/x5)?

If a shopkeeper sells an item at Rs 4200 which is marked as Rs 4800, then what is the discount (in %) that he is offering?

What is the value of 10% of 150% of 400?

A T.V was sold at a profit of 5% If it had been sold at a profit of 10% , the profit would have been Rs. 1000 more. What is its cost price ?