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84 Maths books, 90 Physics books and 120 Chemistry books have to be stacked topicwlse. How many books will be there in each stack so that each stack will have the same height too
- A12
- B18
- C6
- D21
Answer not set
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0
CCommunity
is 18 is the correct answer am i right
0
CCommunity
As the height of each stack is same, the required number of books in each stack $=$ HCF of $84, 90$ and $120 $
$84 = 2 × 2 × 3 × 7 $
$90 = 2 × 3 × 3 × 5 $
$120 = 2 × 2 × 2 × 3 × 5 $
HCF $= 2 × 3 = 6$
$84 = 2 × 2 × 3 × 7 $
$90 = 2 × 3 × 3 × 5 $
$120 = 2 × 2 × 2 × 3 × 5 $
HCF $= 2 × 3 = 6$