Question

which of the following number have unit digit same as that of their square option a) 23 b) 19 c) 35 d) 44​

Answer 1

Answer:

c) 35

Step-by-step explanation:

35 unit digit is 5

and 35²=1225

unit digit in this number is also 5

Answer 2

Given:

which of the following number have unit digit same as that of their square option a) 23 b) 19 c) 35 d) 44

​

ANSWER: Option (c) 35

Step-by-Step Explanation:

Let's find out the squares of the given numbers:

(a) 23 = 23 x 23 = 529

Unit digit of 23 is 3 and the unit digit of 529 is 9

(b) 19 = 19 x 19 = 361

Unit digit of 19 is 9 and the unit digit of 361 is 1

(c) 35 x 35 =1225

Unit digit of 35 is 5 and the unit digit of 1225 is 5

(d) 44 x 44 = 1936

Unit digit of 44 is 4 and the unit digit of 1936 is 6

Hence, from the above, we can see that 35 is the number that has a unit digit same as that of its square.