What will be the least number which when doubled will be exactly divisible by 9,15,21,30
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1.5 because
1.5*2=the
9/3=3
15/3=5
21/3=7
30/3=10
hence the required number is 1.5
1.5*2=the
9/3=3
15/3=5
21/3=7
30/3=10
hence the required number is 1.5
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