Calculate the sum of multiplies of 7 between 100 and
300?
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aslamualaikum..
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Multiples of 7 between 100 and 300 are
105, 112, ... 294
First term = a = 105
Common difference = d = 7
Let 294 be the nth term of the AP.
Then, 294 = a + (n - 1)d
294 = 105 + (n - 1)7
7(n - 1) = 189
n = 28
105, 112, ... 294
First term = a = 105
Common difference = d = 7
Let 294 be the nth term of the AP.
Then, 294 = a + (n - 1)d
294 = 105 + (n - 1)7
7(n - 1) = 189
n = 28
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