Quantitative Aptitude - Arithmetic Ability Questions

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

If sinA + sin2A =1 then what is the value of cos2A + cos4A

The value of Cot17°Cot73°Cos222° + 1Cot17°Sec268° is

The value of -261+(-380)-(-521)+821-(-121)

The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?

Divide 3740 in three parts in such a way that half of the first part, one-third of the second part and one-sixth of the third part are equal.

A train runs at 80 kmph for the first 40 km and the next 30 km at 60 kmph. Find the average speed.