Quantitative Aptitude - Arithmetic Ability Questions

Pick the odd one out from the following

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

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If S divides PQ in the ratio 4:3 and length of QR is 4.9 cm, find ST?

The diagonals of 2 squares M and N are in the ratio 2:1. The ratio of their areas is

If a regular polygon has 10 sides then the measure of its interior angle is greater than the measure of its exterior angle by how many degrees?

What smallest number should be added to the sum of squares of 15 and 14, so that the resulting number is a perfect square?

A natural number, when divided by 4, 5, 6 or 7, leaves a remainder of 3 in each case. What is the smallest of all such numbers?

Length of three line segments isgiven. Is construction of a triangle possible with the segments in the given cases?