Quantitative Aptitude - Arithmetic Ability Questions

ΔABC is right angled at B. BD is its altitude. AD = 4 cm and DC = 12 cm. What is the value of AB (in cm)?

In ΔABC, ∠B=90 deg and BC= √3 AB. Find the measurement of ∠A

If x stands for addition, / stands for subtraction, + stands for multiplication and - stands for division, then what is the value of 20 x 8 / 8 - 4 + 2 ?

Find the value of sin230 cos245 + 4 tan230 + 1/2sin290 - 2 cos290 + 1/24

A sum of Rs 6000 becomes Rs 7200 in 2 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 3 years?

On dividing a number by 38, we get 70 as quotient and 12 as remainder. What is the number?

If x + y + z = 0, then what is the value of (3y2 + x2 + z2 )/(2y2 – xz)?

What is the sum of the first 13 terms of an arithmetic progression if the 5th term is 1 and the 8th term is -17?