Quantitative Aptitude - Arithmetic Ability Questions

A can do a work in 36 days and B in 12 days. If they work on it together, then in how many days will they be able to do the work?

If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?

The area of a square is 40.5 cm². Find the length of its diagonal (in cm).

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal sides, what is the length of the third side?

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?

A can do a piece of work in 9 days while B can do it in 12 days. A and B together can do the work in

A canteen requires 56 kgs of rice for seven days . The quantity of rice required for the months of April and May together is

A vendor buys 6 bananas for Rs 25 and sells them at 3 for Rs 20. What is his profit percentage?