Quantitative Aptitude - Arithmetic Ability Questions

If a vendor sells apples at Rs 170 per kg he suffers 15% loss. If he sells at Rs 230 per kg, then what is his profit percentage?

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?

In a committee there are 15 members. If two members whose ages are 45 years and 55 years are replaced by the two new members, then average age of 15 members is increased by 2 years. What is the average age (in years) of the new members?

If tan(A/2) = x, then the value of x is

If a : b is 32 : 35 and b : c is 21 : 32, then a : c is?

An angle is smaller than its supplementary angle by 50°. What is the measure of the angle?

If A : B = 1 : 4 and B : C = 2 : 3, then what is A : B : C?

If α and β are roots of the equation 3x2 – 13x + 14 = 0, then what is the value of (α/β) + (β/α)?