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2 years ago

How many 3 digit positive integers exist that when divided by 7 leave a remainder of 5.

Mathematics

1 answer:

PtichkaEL [24]2 years ago

6 0

The number of 3-digit positive integers is 129 if divided by 7 leaving a remainder of 5.

<h3>What is an arithmetic operation?</h3>

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

It is given that:

The three-digit positive integers divided by 7 leave a remainder of 5.

14x7 = 98

98 + 5 = 103

The arithmetic sequence

103,110,117,124,......992,999

l = a + (n - 1)d

999 = 103 + (n - 1)7

n = 129

Thus, the number of 3-digit positive integers is 129 if divided by 7 leaving a remainder of 5.

Learn more about the arithmetic operation here:

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