. In a bookstore, 60 identical books occupy a length
of 1.5 m on a shelf. Find
(i) the length occupied by 50 such books on
a shelf,
(ii) the number of such books needed to completely
occupy a shelf that is 80 cm long.
Please solve this for me step by step proper
I’ll report if answer is wrong
Answers
Answer:
a) 60 books occupy 1.5m of shelf
therefore, 1 book occupies ( 1.5/60m )of shelf
therefore 200 books occupy {(1.5/60) ×200}m of shelf
= (1.5/6) ×20
= 30/6
= 5m of shelf answer
b) now, 5m = 500cm is occupied by 200 books
therefore, 1cm is occupied by (200/500) books
= (2/5) ×80
= 2×16
= 32 books
Answer:
(a) 1.25m
(b) 18 books
Step-by-step explanation:
(a) first calculate the length of 1 book
1.5m=150cm
no. of books=60
length=150cm
length of 1 book=150/60
=2.5cm
length of 50 such books=2.5cm* 50
=125cm
=1.25m (answer)
(b) length of one book =2.5 cm
length to be occupied= 80 cm
so,No. of books = 80cm/2.5cm
= 18 books (answer)
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