Quantitative Aptitude - Arithmetic Ability Questions

An army lost 10% of its men in war, 10% of the remaining died due to disease and 10% of the rest were declared disabled. Thus the strength of the army was reduced to 7,29,000 active men. The original strength of the army was

The average monthly salary of 19 members of a group is Rs. 16000. If one more members whose monthly salary is Rs. 20000 has joined the group, then the average salary of the group is

The average salary of all workers in a workshop is Rs.12000. The average salary of 7 technicians is Rs.15000 and the average salary of the rest is Rs.9000. The total number of workers in the workshop is

A 150 m long train, travelling at 54 km/h, crosses a platform in 42 seconds. What is the length of the platform?

In Δ ABC , if ∠BAC = 90° and AB = AC , then ∠ABC is

At least one diagonal bisects the other in a _____.

The  sum  of  three  prime  numbers  is  100.  If  one  of  them  exceeds  another  by  36,  then  one  of  the numbers is

The mean of the data 2, 9, 9, 3, 6, 9, 4 is