How many 6 digit numbers are divisible by either 3 or 7 but not by 42 explain me?
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Greatest 6 digit number which is divisble by 3 = 999999
Smallest 6 digit number which is divisible by 3 (a)= 100002
d=3
numbers = n
100002 + (n-1)3 = 999999
(n-1)3 = 899997
n-1 = 299999
n = 299998
Greatest 6 digit number which is divisble by 7 = 999999
Smallest 6 digit number which is divisible by 7 (a)= 100002
d=7
numbers = n
100002 + (n-1)7 = 999999
(n-1)7 = 899997
n-1 = 128571
n = 128570
numbers divisible by 3 = 299998
Numbers divisible by 7 = 128570
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