Quantitative Aptitude - Arithmetic Ability Questions

Mohan earns a profit of 20% on selling a jean at 15% discount on printed price. The ratio of the cost price to printed price of the jean is

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?

If 14/3 + (1/2)(x - 7/3) = -2x/3, then the value of x is?

If the perimeter of a semicircle is 108 cm, then find its area (in cm²).

If the cost of 17 m of cloth is Rs. 77 5/7, find its cost per meter in Rs.?

Average of the height of 251 students of a school is 48. If the average of the height of the boys is 51 and the average of the height of the girls is 29, then what will be the ratio of the total height of boys and the total height of girls respectively?

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

If 4x + 1x = 5, (x≠0), then the value of 5x4x2+10x+1 is