When writing the numbers from 1 to 400, the digit '1' appears in several places. It appears 1 time in the numbers 1 to 9, 10 times in the tens place (10-19), 100 times in the hundreds place (100-199), and 40 times in the ones place across the hundreds (1, 11, 21, ..., 391). In total, '1' is written 1 + 10 + 100 + 40 = 151 times.
Exactly 400 times
4m = 400 cm Hence 400/375 = 16/15 = 1 and 1/15 times
13
The digit 3 will be written 20 times.
Write out the numbers 1 to 100. Count the number of times 1 appears.
Exactly 400 times
4m = 400 cm Hence 400/375 = 16/15 = 1 and 1/15 times
19 with remainder 1.
400 with remainder 1.
13
180
Well, darling, to write 1 over 400 as a percent, you simply multiply 1 by 100 and then divide by 400. That gives you a whopping 0.25%. So, there you have it, 1 over 400 as a percent is 0.25%.
2.5 times: 400 + 400 + 200 = 1000
111 is the answer
400 ÷ 1/4 = 400 × 4/1 = 1600
0.25% = 1/400
It is: 335/400 times 100/1 = 83.75%