Quantitative Aptitude - Arithmetic Ability Questions

What is the difference (in Rs) between the compound interests on Rs. 1000 for 1 year at 10% per annum compounded yearly and half-yearly?

A shopkeeper marks up his wares by 60% and offers 25% discount. What will be the selling price (in Rs) if the cost price is Rs 1600?

Length and breadth of a rectangle are increased by 40% and 70% respectively. What will be the percentage increase in the area of rectangle?

The areas of two similar triangles ΔABC and ΔPQR are 36 sq cms and 9 sq cms respectively. If PQ = 4 cm then what is the length of AB (in cm)?

The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

ΔDEF is right angled at E. If cosD = 8/17, then what is the value of secF ?

Car B is twice as fast as car A. If car A covers 90 km in 2 hours, what is the speed of car B?