A father is 5 times as old as his son. His son is 6 years old. His son is 6 years old. After how many years, will the father be 4 times as old as his son?

Direction: Select the related word from the given alternatives.

850 : 863 :: 430 :?

7, 18, 40…….?....117, 172

Directions: In the following question four words have been given, out of which three are alike in some manner and the for one is different. Choose out the odd one.

Direction: In the following question, select the related letters from the given alternatives.
Energy: Joule :: Volume : ?

How many triangles are there in the following figure?

Which answer figure will complete the question figure?

Select the figure that can replace the question mark (?) in the following series.