Ten boys or twenty girls can complete a job in 10 days. In how many days can a boy and a girl complete it

4 boys and 5 girls can do a piece of work in 10 days. 6 boys and 6 girls can do the same work in 7 days. In how many days can 2 boys and 7 girls complete the same work, working together?

4 boys and 5 girls can do a piece of work in 10 days. 6 boys and 6 girls can do the same work in 7 days In how many days can 2 boys and 7 girls complete the same work, working together?

Five men or ten women can complete a job in 20 days. In how many days can 3 men and 4 women complete it ?

22 men can complete a job in 16days. In how many days, will 32 men complete that job?

1 man or 2 boys or 3 girls can do a piece of work in 88 days. In how many days one man , one boy and one girl can do the same work ?