Quantitative Aptitude - Arithmetic Ability Questions

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

The value of 122 + 345 - 3 / 1116 x 372 is

A man purchased a cycle for Rs.3000/- and agreed to pay 12% on the amount as interest. He repaid principal and interest in 12 equal monthly installments. Find the amount of each installment.

Two trains are moving in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then what is the speed (in km/hr) of each train?

The ratio of present ages of Rangana and Sayed is 7:5. After 11 years the ratio of their ages will be 4:3. What is Rangana's present age?

The ratio of two numbers is 5 : 9 and their difference is 44. What will be the smaller number among both the numbers?

If 3:27 :: 5:?

Find out the odd word/letters/number/number pair from the given alternatives.