Quantitative Aptitude - Arithmetic Ability Questions

Δ ABC is right angled at B. If m∠A = 30°. What is the length (in cm) of AB, if AC = 8 cm?

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?

The average of three numbers is 6. The average of the first two is 5 while the average of the last two is 8. The three numbers are:

In figure, DE || BC. If DE = 3 cm, BC = 6 cm and area of ΔADE = 15 sq cm, then the area of ΔABC is

In ΔPQR, ∠QPR = 45° and the bisectors of ∠PQR and ∠PRQ meets at O. What is the value (in degrees) of ∠QOR?

The curved surface area and the diameter of a right circular cylinder are 352 cm² and 14 cm respectively. Find its height (in cm).

What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

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