Respuesta :

301 is acceptable since it has 1 one. 311, 321, 331, 341, 351, 361, 371, 381, and 391 have ones. That's 9 numbers off of 100 numbers, so he writes 91 numbers.

Answer:

There are 98 numbers in between 300 and 400 with fewer than 2 ones.

Step-by-step explanation:

As we know that there are 99 numbers between 300 and 400 and we know that there we have to find the number which have fewer than 2 ones.

Since all the number except 311 have less than 2 ones which could also be said as fewer than 2 ones.

( 311 have two ones in it)

Hence, the number between 300 and 400 with fewer than 2 ones are:

98 (Since, 99-1= 98 )