Quantitative Aptitude - Arithmetic Ability Questions

Of the 3 numbers whose average is 70, the first is 1/9 times the sum of other 2. The first number is

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 198, then what is the difference between the first and the third number?

Study the information carefully to answer the following questions: An urn contains 5 red, 3 green, 2 blue and 4 yellow marbles. If three marbles are picked at random, what is the probability that one is green and two are yellow?

To cover a distance of 90 km in 2.5 hours what should be the average speed of the car in meters/second?

ABCD is a kite where m∠A is 90° and m∠C is 60°. If length of AB is 6 cm, what is the length of diagonal AC?

Find the circumference (in cm) of a circle of radius 10.5 cm

The ratio of two numbers is 5 : 4. If the sum of both the numbers is 180, then what is the smaller number among both the numbers?

If 2x/3 - [5(4x/5 - 4/3)]/2 = 1/3, then what is the value of x?