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solmaris [256]
2 years ago
13

How many positive integers less than 1000 are divisible by exactly one of 7 and 11?

Mathematics
1 answer:
swat322 years ago
8 0
994/7(number of multiples of 7 smaller than 1000) + 990(number of multiples of 11 smaller than 1000) - 924/(lcm of 7 and 11) (number of multiples of 77 smaller than 1000) = 142+90-12
                   = 220

hope i helped :)
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