Quantitative Aptitude - Arithmetic Ability Questions

7 litres mixture of milk and water contains 30% water. 3.5 litres of milk is added to this mixture. What is the percentage of water in the new mixture?

Among three numbers , second is twice the first and also thrice the third . If the average of the three numbers is 33 , then the largest number is

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

P, Q and R are partners in a company. In any year P receives 1/9 part of profit, Q receives 1/6 part of profit and R receives Rs 130000. How much amount (in Rs) will P get as profit?

The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is

The distance between the tops of two building 38 metres and 58 metres high is 52 metres. What will be the distance (in metres) between two buildings?

If x2+5x+6 = 0, then the value of 2xx2-7x+6 is

Find the mean proportional between 2 and 98?