Questions

To obtain exotic spices or to find trade items are not the reasons for christian missionaries went to Asia.

Let speed of slower train = 2x
⇒ speed of faster train = 5x
ATQ, (150 + 200)/(2x + 5x) = 15
x = 10/3
Time required=350/[50/3–20/3]= 35 seconds

I am a Window, allows people to see through walls.

Plan-do-check-act cycle

After the deaths of  Cromwell monarchy was restored and Charles II was made king of England. He and his successor, James II tried to assert the superiority of the monarchy. But feelings against this kind of rule had grown too strong. In 1688, a group of politicians invited William of Orange, the husband of James II's daughter, Mary, and rulers of Holland, to become king. Without firing a shot, William reached London and James II fled to France. The throne was granted to William and Mary Jointly. This event is known as the 'Glorious Revolution' . This revolution marked the triumph of parliament over the monarchy.