Quantitative Aptitude - Arithmetic Ability Questions

If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is

The length of a side of an equilateral triangle is 8 cm. The area of the region lying between the circum circle and the incircle of the triangle is (use: π = 22/7)

The diameter of a circle is 28 cm find its area?

Find out the odd word/letters/number/number pair from the given alternatives.

P and Q are at a distance of 240 km from each other at 9:00 a.m. After 1 hour, P starts moving towards Q at a speed of 25 km/hr. At 11 a.m. Q startsmoving towards P at the speed of 18 km/hr. At what time (in p.m.) will they meet?

If 169 is subtracted from the square of a number, then the result obtained is 7056. What is the number?

7/15 of 5/3 of a number is greater than 7/9 of 3/5 of the same number by 9. Find the quadruple of the number.

If 2x2+2y2=4a the find the value of 2ax2-a+2ay2-a