Solution:
Given:
Number 82178342*52 is divisible by 11
Concept Used:
In this type of question, a number is divisible by 11 when difference of digits at even place and odd places is equal to zero or a multiple of 11
Calculation:
Using the above concept, we get
⇒ (8 + 1 + 8 + 4 + * + 2) - (2 + 7 + 3 + 2 + 5) = 0 or multiple of 11
Since the value of * should be minimum the R.H.S will be 11
⇒ (23 + *) - (19) = 11
⇒ * = 7
∴ Required least value of * = 7.
