Quantitative Aptitude - Arithmetic Ability Questions

Raghuram sells a machine for Rs 43 lakhs at a loss. Had he sold it for Rs 53 lakh, his gain would have been 7 times the former loss. Find the cost price of the machine.

The sum of the ages of father and son at present is 33. Two years ago the product of their ages was 28. What is the age of the father and the son?

20% of a man's salary is paid as rent, 60% are his living expenses and 10% are his savings. If he spends remaining  30 on the education of his children, find his salary

Find out the odd word/letters/number/number pair from the given alternatives.

The area of an equilateral triangle is 9√3 sq cm, find its perimeter?

In ΔABC, the angle bisector of ∠A cuts BC at E. Find the length of AC if lengths of AB, BE and EC are 9.6 cm, 4 cm and 3 cm?

What is the value of [(sin 7x – sin 5x)÷(cos 7x + cos 5x)] – [(cos 6x – cos 4x)÷(sin 6x + sin 4x)]?

If a – b = 11 and ab = 24, then value of a2 + b2 is