Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sin ­-300°?

If  2x+14x = 1, then the value of  x2+164x2is

ΔABC is right angled at B. If m∠A = 45 deg, then find the value of (tanC + √3/2).

If 3√2 + √18 + √50 = 15.55, then what is the value of √32 + √72?

In the following question, four number pairs are given. The number on left side of (–) is related to the number of 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 a3+1a3 = 2, then the value of a2+1a?

If 4x - 5y = -37 and 7x + y = -16, then x - y = ______

A mixture of alcohol and water contains 7% alcohol. How much mixture (in litres) is required to get 357 litres of alcohol?