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pankaj sharma

· started a discussion

· 1 Months ago

pankaj (Question: 119458.0 )

how can change 16m into 160 and 1m into 100

Question:
A rectangular box measures internally 1.6 m long, 1 m broad and 60 cm deep. The number of cubical block each of edge 20 cm that can be packed inside the box is:
Options:
A) 60
B) 53
C) 30
D) 120
Solution:
Ans: (d)

Volume of rectangular box = 160 x 100 x 60 cm3

and volume of one cubical block = 20 x 20 x 20 cm3

\(\therefore\) Required number of cubical block = \(\cfrac{160\times100\times60}{20\times20\times20}\)     = 120 blocks

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
We have changed m to cm by multiplying 100.
1.6 m = 1.6*100 = 160 cm .

Thanks and Regards
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