How many times will it flash??

If a light flashes every 6 seconds, how many times will it flash in 3/4of an hour?

Answer: 

451 times.

Explanation:

There are 60 minutes in an hour.

            In ¾ of an hour there are (60 * ¾) minutes  = 45 minutes.

                        In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.

            Light flashed for every 6 seconds.

                        In 2700 seconds 2700/6 = 450 times.

The count start after the first flash, the light will flashes 451 times in ¾ of an hour.

Who was the second?

5 boys were climbing a hill. J was following H. R was just ahead of G. K was between G & H. They were climbing up in a column.Who was the second?

Answer:

G.

            Explanation:

            The order in which they are climbing is R – G – K – H – J    

What is the relation?

Introducing a boy, a girl said, "He is the son of the daughter of the father of my uncle." How is the boy related to the girl?

Answer:Brother
Explanation:
The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father.