Quantitative Aptitude - Arithmetic Ability Questions

The ratio of present ages of Ratnabali and Shaukat is 8:5. After 22 years the ratio of their ages will be 10:9. At present, what is Ratnabali's age?

What is the ratio of simple interest earned on certain amount at the rate of 12% for 6 years and that for 12 years?

A solid cone of height 36 cm and radius of base 9 cm is melted to form a solid cylinder of radius 9 cm and height 9 cm. What percent of material is wasted this process?

What is the value of cos (90 – B) sin (C – A) + sin (90 + A) cos (B + C) – sin (90 – C) cos (A + B)?

Find the value of x if 1-x24 = 1318

What is the value of (4/3) cot2 (p/6) + 3 cos2 (150) – 4 cosec2 45 + 8 sin (p/2)?

What is the value of x4+y4 when the value of x3+y3=8 and x+y=2 ?

In the following question, select the odd word from the given alternatives.