Quantitative Aptitude - Arithmetic Ability Questions

Ajay can do a painting in 12 days. Amit is 70% more efficient than Ajay. What is the number of days Amit would need to finish the same painting?

A student multiplied a number by 6/7 instead of 7/6. What is the percentage error in the calculation?

In the given figure, in a right angle triangle ABC, AB = 12 cm and AC = 15 cm. A square is inscribed in the triangle. One of the vertices of square coincides with the vertex of triangle. What is the maximum possible area (in cm.sq) of the square?

If x + y = 10 and x2 + y2 = 68, then find xy

If 1/2 is added to a number and the sum is multipled by 3, the result is 21. Then the number is

9 women can complete a work in 50 days. If more 6 women were added to them, how many days before the work can be completed?

If in 3 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs. 25,000 in 3 years at the same rate?

In the given figure, PQR is an equilateral triangle with side as 12 cm. S and T are the mid points of the sides PQ and PR respectively. What is the area (in sq.cm) of the shaded region?