answer question6 and 7
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We will take HCF of 16, 20, 30. either calculate by euclid's division algorithm like this
step 1. first take hcf of 16,20.
a=bq+r
20 = 16 ×1 +4
16= 4×4 +0
now, we will take hcf of 4 and 30
30 = 4×7+2
4 = 2×2+0
So, hcf of 16,20,30 is 2.
Therefore Ravi, Ajit and Sima will meet after 2 minutes.
step 1. first take hcf of 16,20.
a=bq+r
20 = 16 ×1 +4
16= 4×4 +0
now, we will take hcf of 4 and 30
30 = 4×7+2
4 = 2×2+0
So, hcf of 16,20,30 is 2.
Therefore Ravi, Ajit and Sima will meet after 2 minutes.
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