Quantitative Aptitude - Arithmetic Ability Questions

An angle is smaller than its supplementary by 30°. What is the measure of the angle?

Three cubes of iron whose edges are 6cm, 8cm and 10cm respectively are melted and formed into a single cube. The edge of the new cube formed is

At least two pairs of consecutive angles are congruent in a _____.

The least number that must be subtracted from 202 to make it a perfect square is

If a - b = 5 and a2 + b2 = 97, ab = ?

If the radius (r) of a circle is increased by 'x' units, what is the number of units by which the circumstance of the circle is increased?

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

Sum of twice a fraction and 5 times its reciprocal is 7. What is the fraction?