Quantitative Aptitude - Arithmetic Ability Questions

Sum of two numbers is thrice their difference. Their ratio is

Find the largest number of three digits exactly divisible by 15, 18, 27 and 30.

The sum of a fraction and 4 times its reciprocal is 13/3. What is the fraction?

If a3 + b3 = 35 and ab = 6, then what is the value of a + b?

To cover a distance of 252 km in 2.5 hours what should be the average speed of the car in meters/second?

If by selling an article for Rs. 390 a shopkeeper gains 20% , then the cost is

A money lender lends Rs. 400 for 3 years to a person and lends Rs. 500 for 4 years to the other person at the same rate of simple interest. If altogether he receives Rs. 160 as interest, what is the rate of interest per annum ?

In a Δ ABC, DE || BC. D and E lie on AB and AC respectively. If AB = 7 cm and BD = 3cm, then find BC:DE