Quantitative Aptitude - Arithmetic Ability Questions

What is the distance between the points (4,­-8) and (­-2,0)?

ΔABC is right angled at B. If cotA = 7/24, then what is the value of cosecC ?

In the following question, select the odd letter from the given alternatives.

Some girls can do a piece of work in 18 days. In how much time (in days) two times the number of such girls will complete thrice of the work?

The radius of a hemisphere is 21 cm, what is its volume? (Take π = 22/7)

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

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

If a number is reduced by 35%, then it becomes 416. By how much percent should the number be increased so that it become 876.8?