Quantitative Aptitude - Arithmetic Ability Questions

Find the value of 1006×994?

Choose the one which is different or odd from the following options?

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.

If x = (a/b) + (b/a), y = (b/c) + (c/b) and z = (c/a) + (a/c), then what is the value of xyz – x2 – y2 – z2?

A number is greater than 58 times its reciprocal by 3/4. What is the number?

If 9x = 24311, then what is the value of x?

If three successive discounts of 20%, 30% and 40% are given, then what will be the net discount (in percentage)?

The total surface area of a hemisphere is 462 sq.cm. Find its diameter (in cm).