Quantitative Aptitude - Arithmetic Ability Questions

A contractor has got two orders A and B. On one (A) he spends Rs. 25,000 and makes a bill of Rs. 30,500. On the other (B) he makes a bill keeping a profit of 20%. Which of the two orders is more profitable to him?

A dealer is selling an article at a discount of 5% on the Marked price. If the Marked price is 12% above the cost price and the article was sold for Rs. 532 then the cost price is (in Rs.)

A pentagonal prism has 15 edges. How many vertices does it have?

A line cuts two concentric circles. The lengths of chords formed by that line on the two circles are 4 cm and 16 cm. What is the difference (in cm2) in squares of radii of two circles?

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

If a - b = 1 and ab = 6, then what is the value of a3- b3?

p3 + q3 + r3 – 3pqr = 4. If a = q + r, b = r + p and c = p + q, then what is the value of a3 + b3 + c3 – 3abc?

What is the value of 5.6x0.36+0.42x3.20.8 x 2.1 ?