Quantitative Aptitude - Arithmetic Ability Questions

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

What is the value of sin 5π/3?

If x2+1x2 = 98, then x3+1x3 = ?

Select the odd letters from the given alternatives.

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

The average of marks obtained by 100 candidates in a certain examination is 30. If the average marks of passed candidates is 35 and that of the failed candidates is 10, what is the number of candidates who passed the examination?

The mean of the data 1, 1/2, 1/2, 3/4, 1/4, 2, 1/2, 1/4, 3/4 is

D, E, F are the mid - points of the sides BC , CA and AB respectively of a ΔABC . Then the ratio of the areas of ΔDEF and ΔABC is