Quantitative Aptitude - Arithmetic Ability Questions

The sum of a non-zero number and ten times its reciprocal is 7. Find the number.

The average weight of P, Q and R is 71 kg. If the average weight of P and Q be 66 kg and that of Q and R be 76.5 kg, then the weight (in kg) of Q is.

The percent profit made when an article is sold for Rs. 78 is twice as much as when it is sold for Rs. 69, the cost price of the article is?

Find the least number which when divided by 20, 25, 35 and 40 leaves remainder 14, 19, 29 and 34 respectively?

Diameter of a car wheel is 21 cm. A car driver moving at the speed of 66 km/hr takes 36 seconds to reach a destination. How many revolutions will the wheel make during the journey?

Find the difference between place value and face value of 7 in 589573212.

If a - b = 2 and ab = 8, then what is the value of a3 - b3?

Area of _____ equals half the product of its diagonal.