In an auditorium the number of chairs in first ,second and third row are 20,24and28 respectively . If the total number of row are 30,the find the total number of chairs in auditorium?
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Answer:
18000
Step-by-step explanation:
you have to take the LCM of 20, 24,28
LCM is 2×2×2×3×5×7= 600
total row is 30
600 ×30 =1800
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