The cost of an article was 75. The cost was first increased by 20% and later on it was reduced by 20%. The present cost of the article is:

In a school, if there are 36% boys and 352 girls, then the number of boys is ________.

Direction: Study the following information carefully and answer the questions given below.
 25% of the boys and 60% of the girls from a college participated in an event. The total number of girls in the college is equal to the number of boys, who do not participate in the event.

If the difference the number of boys and girls, who participated in the event is 40, then the total number of boys and girls in the college is