exe 13.5, 7 i.jpg

Ex 13.5, 7 - Chapter 13 Class 9 Surface Areas and Volumes - Part 2

The calculation in this video is wrong, we have mistakenly taken height of godown as 10, but it is 15. 1

Go Ad-free

Transcript

Question 7 A godown measures 40 m × 25 m × 10 m. Find the maximum number of wooden crates each measuring 1.5 m × 1.25 m × 0.5 m that can be stored in the godown. Godown Length of godown = 40 m Breadth of godown = 25 m Height of godown = 15 m Volume of godown = Length × Breadth × Height = (40 × 25 × 15) m3 = 15000 m3 Crate Length of crate = 1.5 m Breadth of crate = 1.25 m Height of crate = 0.5 m Volume of wooden crate = Length × Breadth × Height = (1.5 × 1.25 × 0.5) m3 = 0.9375 m3 Number of wooden crates = (𝑉𝑜𝑙𝑢𝑚𝑒 𝑜𝑓 𝑔𝑜𝑑𝑜𝑤𝑛)/(𝑉𝑜𝑙𝑢𝑚𝑒 𝑜𝑓 1 𝑐𝑟𝑎𝑡𝑒) = 15000/0.9375 = 15000/9375 × 10000 = 16000 So, 16000 wooden crates can be stored in the godown

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo