How many 3 digit number is divisible by 7
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The first three digit number which is divisible by 7 is 105 and last three digit number which is divisible by 7 is 994. This is an A.P. in which a = 105, d = 7 and l = 994. Let the number of terms be n . Then tn = 994.
ajaycs333:
Dude wrong I asked how many means n=?
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The nearest number greater than 100 & divisible by 7 is 105, which is 7*15. Similarly, the nearest number less than 999 & divisible by 7 is 994 which is 7*142. So, if u substract 15 from 142, it will give you how many numbers are divisible by 7 in that range.
Wrong dude I asked how many not the last term or first term
Ya just subtract
You will get it
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