If n is a three digit number and last two digits
of square of n are 54 (n2 = … 54), then how many values of n are possible?
Answers
Answer:
sorry I can't answer you
Step-by-step explanation:
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Answer:
Zero
Step-by-step explanation:
n^2=...54, square of n is even number and thus n is even number.
The square of even number n=2k is n^2=4k^2.
It must be divisible by 4.
Divisibility rule 4 says "If the last two digits of a whole number are divisible by 4, then the entire number is divisible by 4".
Our number ends with 54 and it is not divisible by 4:
- 54/4=13 rem 2
So there is no such 3 digit number.
Answer is zero