Quantitative Aptitude - Arithmetic Ability Questions

Find the greatest length which can be used to measure exactly three cloth pieces of lengths 1.26 m, 1.98 m and 1.62 m respectively.

If three numbers are in the ratio 2 : 3 : 5 and the twice their sum is 100. Find the square of the largest of the three numbers.

If cosαcosβ=m and cosαsinβ=n,then the value of m2+n2 cos2β is

A closed wooden rectangular box made of 1 cm thick wood has the following outer dimensions : length 22 cm, breadth 17 cm, and height 12cm. It is filled to capacity with cement. What is the volume of the cement in the box?

The sum of a fraction and 7 times its reciprocal is 11/2. What is the fraction?

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

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

12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work?