Quantitative Aptitude - Arithmetic Ability Questions

If a.sin 45°.cos 45°.tan60° = tan 245° ­ cos60° then find the value of a ?

Find the odd words/letter/number from the given alternatives:

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

If √x ­- √y = 1 , √x + √y = 17 then √xy = ?

If 2x- ­2(x ­- 2) < 5 ­- x > ­-2x + 2; then the value of x is

A natural number, when divided by 5,6,7 or 8,leaves a remainder of 4 in each case. what is the smallest of all such numbers?

On Selling a book at 9/14 of the marked price there is loss of 10%. What will be the ratio of marked price and cost price of the book?