24 people can construct a house in 15 days.but the owner would like to finish it in 10 days.how many more workers will be needed .the price of 50 books is RS. 2000.what would be the price of 30 such books?
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Answer:
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Question:
24 people can construct a house in 15 days But the owner would like to finish it in 10 days. How many more workers will be needed?
Given:
24 people can construct it in 15 days
Find the number of people needed to build it in 1 day:
15 days = 24 people
1 day = 24 x 15
1 day = 360 people
Find the number of people needed to build it in 10 days:
1 day = 360 people
10 days = 360 ÷ 10
10 days = 36 people
Find the number of people to add:
Number of people needed to be added = 36 - 24
Number of people needed to be added = 12
(a) They need 12 more workers.
Question:
The price of 50 books is RS. 2000. What would be the price of 30 such books?
Find the price of 1 book:
50 books = Rs 2000
1 book = 2000 ÷ 50
1 book = Rs 40
Find the price of 30 books:
1 book = Rs 40
30 books = 40 x 30
30 books = Rs 1200
Answer: Rs 1200