Quantitative Aptitude - Arithmetic Ability Questions

Sumit and Amit undertook a work for Rs 7200. Sumit alone can do the work in 5 days and Amit alone can do the work in 4 days. If they work together,then what will be the difference (in Rs.) in the amount they receive?

What is the simplified value of 18 - 12 ?

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

Rearrange the jumbled up letters in their natural sequence and find the odd one out.

If (tanA ­- tanB)/(1 + tanAtanB) = x, then the value of x is

Triangle DEF is right angled at E. If cot D = 5/12, then what is the value of sin F?

What is the altitude of an equilateral triangle whose side is 12 cm?

In triangle PQR, the sides PQ and PR are produced to A and B respectively. The bisectors of ∠AQR and ∠BRQ intersect at point O. If ∠QOR = 50°, then what is the value (in degrees) of ∠QPR?