Quantitative Aptitude - Arithmetic Ability Questions

The reciprocal of the sum of the reciprocals of 3/8 and 8/11 is:

Ramesh uses a weight of 930 gm instead of 1 kg and sells sugar on its cost price. What will be his profit percentage on selling 15 kg sugar?

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

The centroid of an equilateral triangle ABC is G. If AB is 6 cms, the length of AG is

A and B together can do a piece of work in 12 days while A alone can do the same work in 30 days. B alone can do it in

Three consecutive integers form the lengths of a right-angled triangle. How many sets of such three consecutive integers is/are possible?

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find the mean of marks of the students of three divisions of Class X.

Samit was given some money to take care of his travel during a 6-day sales drive he had to undertake. However, he had to increase his stay by another 4 days and as a result his average daily travel allowance went down by Rs. 56. What was the amount that was sanctioned to him in the beginning?