Quantitative Aptitude - Arithmetic Ability Questions

The radius of a sphere and hemisphere are same. The ratio of their total surface area is

The reciprocal of the sum of the reciprocals of 2/9 and 7/10 is

In a school 60% of the students are girls. If number of boys is 480, then what is the total number of students in the school?

Choose the odd word/letters/number/number pair from the given alternatives.

The length of the two parallel sides of a trapezium are 16 m and 20 m respectively. If its height is 10 m, its area in square metres is

The flight fare between two cities is increased in the ratio 9:11. What is the increase (in Rs) in the fare, if the original fare was Rs. 18,000?

A man spends a part of his monthly income and saves the rest. The ratio of his expenditure to the saving is 61 : 6. If his monthly income is Rs.8710, the amount of his monthly savings is

Average of the height of 251 students of a school is 48. If the average of the height of the boys is 51 and the average of the height of the girls is 29, then what will be the ratio of the total height of boys and the total height of girls respectively?