150 workers were engaged to finish a job in a certain number of days. 4 workers dropped out on second day, 4 more workers dropped out on third day and so on. It took 8 more days to finish the work. Find the number of days in which the work was completed.

Working 4 hours a day,Sunny can copy a book in 15 days.How many hours a day should she work so as to finish the work in 12 days ?

8 men and 12 boys can finish a piece of work in 10 days while 6 men and 8 boys can finish it in 14 days. Find the time taken by a man alone and that by 1 boy alone to finish the work.

2 women and 5 men can together finish an embriodery work in 4 days, while 3 women and 6 men can finish it in 3 days. Find the time taken by 1 woman alone to finish the work, and also that taken by 1 man alone.

Deepak takes 6 days less than the time taken by Suresh to finish a piece of work. If both Deepak and Suresh together can finish it in 4 days, find the time taken by Suresh to finish the work.

A person on tour has $ 360 for his daily expenses. If he exceeds his tour programme by 4 days he must cut down his daily expenses by $ 3 per day. Find the number of days of his tour programme.

A takes 12 days less than the time taken by B to finish a piece of work. If A and B together can finish it in 8 days, find the time taken by B to finish the work.

A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was ? 90, find the number of articles produced and the cost of each article.

A book exhibition was held for four days in a school. The number of tickets sold at the counter on the first, second, third and final day was respectively 1094, 1812, 2050 and 2751. Find the total number of tickets sold on all the four days.

A fruit vendor buys some oranges at the rate of Rs 5 per orange. He also buys an equal number of bananans at the rate of Rs 2 per banana. He makes a 20% profit on orange and a 15% profit on bananas. At the end of the day, all the fruit is sold out. His total profit is Rs 390. Find the number of oranges purchased.