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How many natural numbers divisible by 7 are there between 3 and 200 ?
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- 27
- 28
- 29
- 36
Correct Option: B
Number just greater than 3 which is divisible by 7 = 7
Number just smaller than 200
which is divisible by 7 = 196
Here, a = 7, an = 196,
d = 7, n = 8
∴ an = a + (n –1)d
⇒ 196 = 7 + (n – 1) × 7
| ⇒ n − 1 = | = 27 | |
| 7 |
⇒ n = 27 + 1 = 28
2nd method to solve this question
We can find the answer after dividing 200 by 7.
The quotient is our answer.
