Quantitative Aptitude - Arithmetic Ability Questions

If cot 135° = x, then the value of x is

What is the simplified value of (sec4 A – tan2 A) – (tan4 A + sec2 A)?

Mother can bake 20 cakes in 4 hours, Mother and Dadima together can bake 60 cakes in 10 hours. How many cakes Dadima can bake in 30 hours?

The ratio of the present ages of Reena and her husband is 4 : 5. 8 years from now, ages of her husband and her son will be in the ratio 24 : 9. If the present age of Reena is 32 years, then what will be her son’s present age (in years)?

Simplify 81x2 - 49y29x + 7y

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

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?

If curved surface area of a cylinder is 616 sq cm and height is 14 cm, find its radius?