The speed of the train going from Nagpur to Allahabad is 100km/Hr. While when coming back from Allahabad to Nagpur is its speed is 150km/Hr. Find the average speed from the whole journey.

The average temperature for wednesday, thursday an friday was $$40\degree\ C$$  The average for thursday, friday and saturday was $$41\degree\ C$$  . If the temperature on saturday was $$42\degree\ C$$  What was the temperature on wednesday?

The average age of three boys is 15 years. If their ages are in ratio 3 : 5 : 7, the age of the youngest boy is

The average of a group of men is increased by 5 years when a person aged of 18 years is replaced by a new person of aged 38 years. How many men are there in the group?

A train covers the first 16 km at a speed of 20 km per hour another 20 km at 40 km per hour and the last 10 km at 15 km per hour. Find the average speed for the entire journey.

Pointing at a photo, Dinesh said, "His father is only son of my mother." The photo belongs to- :

Pointing to a man in a photograph, Asha said,"His mother's only daughter is my mother." How is Asha related to that man?

A and B are brothers. C and D are sisters. A's son is D's brother. How is B related to C ?

Insect : Disease :: War : ?

Book : Cover :: Painting : ?

Float : Sink :: Boat : ?

Water : Dam :: Trade: ?

Interest : Money lender :: Salary : ?

Traveller is related to Journey in the same way as a Sailor is related to:

Pointing at a photo, Dinesh said, "His father is only son of my mother." The photo belongs to- :