Quantitative Aptitude - Arithmetic Ability Questions

In an isosceles trapezium ______.

Average age of 6 boys is 14 years. Average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?

P, Q and R are channels which discharge solutions A,B and C respectively in a tank. When the tank is empty and all the three channels are opened what is the proportion of the solution C in the tank after 3 minutes, if the channels P, Q and R can fill the tank from empty to full in 30 minutes and 20 minutes and 10 minutes respectively when they are opened one at a time.

If a person bought an item for Rs. 96 and sold it at a profit of 12.5%, the selling price of the item was

Which of the following will give a terminating decimal?

In a class when a test is conducted, mean of 25 students marks is 60 if mean of first 13 students marks is 70 and mean of last 13 students marks is 50 find the marks of the middle student when arranged in the ascending order.

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

What is the value of sec 5π/4?