Which among 43², 67², 52², 59² would end with digit 1?
a. 43²
b. 67²
c. 52²
d. 59²
Solution:
Given, the numbers are 43², 67², 52², 59²
We have to find the square of the number that ends with digit 1.
Number obtained when a number is multiplied by itself is called the square of the number.
if m = n², then m is a perfect square where m and n are natural numbers.
The unit digit of a perfect square can be only 0, 1, 4, 5, 6 or 9.
The square of a number having 1 or 9 at the unit's place ends in1.
43² has 3 at the end.
67² has 7 at the end
52² has 2 at the end
Therefore, 43², 67², 52² will not have 1 at the unit’s place
59² has 9 at the end
Therefore, the unit’s digit of 59² is 1.
✦ Try This: Which among 45², 66², 51², 58² would end with digit 5? a. 45², b. 66², c. 51², d. 58²
☛ Also Check: NCERT Solutions for Class 8 Maths
NCERT Exemplar Class 8 Maths Chapter 3 Problem 16
Which among 43², 67², 52², 59² would end with digit 1? a. 43², b. 67², c. 52², d. 59²
Summary:
59² would end with digit 1
☛ Related Questions:
visual curriculum