Quantitative Aptitude - Arithmetic Ability Questions

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.

The sum of two angles of a triangle is 116o and their difference is 24o . The measure of smallest angle of the triangle is

ΔABC is similar to ΔPQR. Length of AB is 36 cm and length of the corresponding side PQ is 16 cm. If area of ΔABC is 1296 sq cm, what is the area of ΔPQR?

The upstream speed of the boat is 40 kmph and the speed of the boat in still water is 55 kmph. What is the downstream speed of the boat?

If 123 x 356 = 43788, then 1.23 x 0.356 = ?

Let O be the orthocentre of the triangle ABC. If ∠BOC = 150°, Then ∠BAC is

A missile travels at 1278 km/h. How many metres does it travel in one second?