Quantitative Aptitude - Arithmetic Ability Questions

ΔDEF is right angled at E. If cosecD = 5/4, then what is the value of cosecF?

A, B and C can complete a task together in 10 days. A and B would need 12 days if only the two of them worked, while B and C would take 20 days if only the two of them worked. If B worked alone, how many days would she take to complete the task?

A right circular conical structure stands on a circular base of 21m diameter and is 14m in height. The total cost of colour washing for its curved surface at Rs. 6 per sq. m. is
(Take Π = 22/7 )

Find the least number among  59, 949, 0.43 and 0.72.

In the following question, select the odd word pair from the given alternatives.

Point P is the midpoint of seg AB. Co­-ordinates of P are (­-1,1) and A are (4,3). What are the co-­ordinates of point B?

What smallest number should be added to the sum of squares of 15 and 14, so that the resulting number is a perfect square?

In the series 5442673314884743581,the number of 4s that are completely divisible by the number on their right but not divisible by the number on their left is