8. Find the sum of the first 40 positive integers divisible by 6
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ஃ The sum of the first 40 positive integers are not divisible by 6.
Step-by-step explanation:
Sum = 1 + 2 = 3 + 3 = 6 + 4 = 10 + 5 = 15 + 6 = 21 + 7 = 28 + 8 = 36 + 9 = 45 + 10 = 55
55 × 4 = 220
Divisibility Rule of 6 :- The number should be divisible by both 2 and 3.
Divisibility Rule of 2 :- Last digit should be an even number.
220 → Last digit is divisible by 2.
220 is divisible by 2.
Divisibility Rule of 3 :- Sum of the digits should be divisible by 3.
2 + 2 + 0 = 4 ( It is not divisible by 3 )
220 is not divisible by 3.
220 is not divisible by 6.
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