Find the sum of the first 15 positive integers divisible by 4
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Find the sum of the first 15 positive integers divisible by 4
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Answer:
4( 1 + 2 + 3 + 4 _ _ _ _ _+ 15 ) ( first 15 integers divisible by 4 )
= 4 [ 15 ( 15 + 1 ) /2 ]
= 4 [ 15(8) ]
= 4 * 120
= 480 ( Ans.)
Step-by-step explanation:
480 is the sum of first 15 positive integers which are divisible by 4.