50
80
80
4000
4000
There are 50 multiples of 80 between 1 and 4000, as 4000 divided by 80 equals 50. However, the question asks for the number of occurrences of the digit "8" in the range from 1 to 4000, not the number of multiples of 80. The digit "8" appears in the units place for numbers 8, 18, 28, ..., 3998, occurring 500 times. Additionally, it appears in the tens place for numbers 80, 81, ..., 89, 180, 181, ..., 189, and so on, occurring 400 times. Therefore, the digit "8" appears 900 times in the range from 1 to 4000.
80
80
To divide 4000 by 80, you can simplify the calculation by first reducing both numbers. Since 80 can be expressed as 8 multiplied by 10, you can divide 4000 by 8 to get 500, and then divide that result by 10, yielding 50. Alternatively, directly dividing 4000 by 80 gives you 50 as well. Thus, 4000 divided by 80 equals 50.
(pi*r2)/2 + 4000
(80 / 4000) * 100 = 2 %
4000
4000
4000 ÷ 80 = 50
There are 50 multiples of 80 between 1 and 4000, as 4000 divided by 80 equals 50. However, the question asks for the number of occurrences of the digit "8" in the range from 1 to 4000, not the number of multiples of 80. The digit "8" appears in the units place for numbers 8, 18, 28, ..., 3998, occurring 500 times. Additionally, it appears in the tens place for numbers 80, 81, ..., 89, 180, 181, ..., 189, and so on, occurring 400 times. Therefore, the digit "8" appears 900 times in the range from 1 to 4000.
2% of 4000 =2/100 * 4000 = 80
80 x 50 = 4,000
250