In a nut-bolt factory 180 workers are working for 6 hours ago a day. Out of 180 workers, there are some men, some women and the rest are boys. All the workers can produce either nut, bolt or both of these. A man can produce 60 nuts and 80 bolts in each hour and a woman can produce 30 nuts and 60 bolts in each hour. A man is thrice as efficient as a boy and 3/2 times as efficient as a woman. Given that all men, all women and all boys can produce equal number of articles of one kind(i. e., either nuts or bolts) every hour.

1) Working 6 hrs a day how was the day how many nuts can they produce with 52,500 bolts in each day?

2) In how many hours can 15 men, 12 women and 8 boys produce 12,000 nuts and 8,200 bolts?

3) If 30 women and 50 boys can produce 5,400 bolts in one hour, then to equal number of nuts in one hour how many men are reqd?

4) If the efficiency of each boy is doubled then what is the increase in production per hour?

5)If the manager of factory wanted equal number of men, women and boys in his factory, but the efficiency of a man, woman and boy remains constant, then the percentage change in
production is :-