Quantitative Aptitude - Arithmetic Ability Questions

65.The angles of elevation of an aeroplane flying vertically above the ground, as observed from the two consecutive stones, 1 km apart; are 45o and 60o. The height of the aeroplane from the ground is

A discount series of 15%, 20% and 25% is equal to the single discount of?

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to

If tanθ = 43, then the value of 3sinθ+2cosθ3sinθ-2cosθ ?

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

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

Puneet purchases 5 dozens of oranges at the rate of Rs 120 per dozen. He sold each one of them at the rate of Rs 11.5. What is the profit (inpercentage) of Puneet?