Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word/letters/number/number pair from the given alternatives.

Findout the odd word/letters/number/number pair from the given alternatives.
7 : 50 : : 9 : ?

Choose the one which is odd from the following options.

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

A man spends a part of his monthly income and saves the rest. The ratio of his expenditure to the saving is 61 : 6. If his monthly income is Rs.8710, the amount of his monthly savings is

Find the remainder when 413 divided by 3?

If sec2θ + tan2θ = 5/3, then what is the value of tan2θ?