Quantitative Aptitude - Arithmetic Ability Questions

Four pairs of words are given. Find the odd one out.

Find the maximum area of a rectangular field which is surrounded by a rope of 100 meters?

By increasing the price of entry ticket to a fair in the ratio 17:19, the number of visitors to the fair has decreased in the ratio 11:10. In what ratio has the total collection increased or decreased?

A can do a piece of work in 10 days, B can do it in 12 days and C can do it in 15 days. In how many days will A, B and C finish it, working all together?

What is the fourth proportional to 24, 120 and 22?

The bus fare between two cities is increased in the ratio 29:31. What is the increase in the fare, if the original fare is Rs 725

What is the value of 1sin490-θ+1cos290-θ - 1 ?

A sum of Rs 6000 becomes Rs 7200 in 2 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 3 years?