Quantitative Aptitude - Arithmetic Ability Questions

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal sides, what is the length of the third side?

If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?

The length of a rectangle is increased by 25%. To maintain the same area, the breadth has to be decreased by

ΔPQR is right angled at Q. QS is the altitude. PQ is 2√13 cm and PS is 8 cm. What is the length of SR?

If a person bought an item for Rs. 60 and sold it at a profit of 25%, the selling price of the item would be

Mahesh buys 3 shirts at an average price of Rs 1250. If he buys 2 more shirts at an average price of Rs 1450 what will be the average price (in Rs) of all the 5 shirts he buys?

The average of 8 consecutive natural numbers is 38.5. What is the largest of these 8 numbers?

In a quadrilateral PQRS, l_S= 90°. A circle (o, r) touches the sides PQ, QR, RS and SP at A, B, C and D respectively. If QR= 38 cm, RS = 25 cm and QA = 27 cm, find 'r'.