The number of natural numbers divisible by 5 between 1 and 1000 is
A
197
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B
199
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C
198
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D
200
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Solution
The correct option is C200
There are 20 numbers between1 to 100 which are divisible by 5
Thus, there are 20×10=200 numbers between 1 to 1000 which are divisible by 5.
OR
Let 'a' be first multiple of 5=5
'n' be the number of multiples between 1 and 1000. 'd' be the common difference =5 and T be the last multiple between 1 and 1000=1000 ⟹T=a+(n−1)d ......... (using A.P.) ∴1000=5+(n−1)5 995=(n−1)5 199=(n−1)
n=200 Hence, there are 200 numbers which are multiples of 5 from 1 to 1000