Quantitative Aptitude - Arithmetic Ability Questions

Simplify 50 + 18 - 8

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?

Find the perimeter (in cm) of a semicircle of radius 14 cm.

The average marks of 10 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 34 instead of 43. What is the correct average?

 Out of two numbers, 65% of the smaller number is equal to 45% of the larger number. If the sum of the numbers is 2574, then what is the value of larger number? 

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

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

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