Quantitative Aptitude - Arithmetic Ability Questions

The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?

If 2+x+2-x2+x-2-x=2,then the value of X is

12 men or 30 boys can complete a work in 72 days. How many days will 48 men and 24 boys will take to complete the same work?

The ratio of present ages of Rangitha and Shaheen is 6:5. After 12 years the ratio of their ages will be 7:6. What is Rangitha's present age?

Neeraj purchased a few shirts for his shop at cost prices ranging from Rs. 400 to Rs. 550 and sold at prices ranging from Rs. 450 to Rs. 650. What is the maximum profit that might be made in selling 10 shirts?

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

The volume of metallic cylindrical pipe of uniform thickness is 748 c.c. Its length is 14 cm and its external radius is 9 cm. The thickness of the pipe is