Question

Let w be defined as 2 more than the number of digits in the integer w. For example, 15* = 4 (2 digits in 15 + 2). If whas 7000 digits, then what is the value of (w)*?

Answer 1

The number of digits in 7000 is 4

The number of digits in w=7000

`(w)^(\cdot)=\text{ the number of digits in w+2}`

`(w)^(\cdot)=\text{7000+2}`
`(w)^(\cdot)=7002`

Hence the required value is 7002.