Mathematics
The sum of first five multiples of 3 is
45
55
65
75
AP GP
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Answer
First five multiples of 3 are : 3, 6, 9, 12, 15.
The above series is an A.P. with first term = a = 3 and common difference = d = 3.
The formula for sum of A.P. is given by,
Hence, Option 1 is the correct option.
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