Question

Which of the following 242sq
, 49sq
, 77sq
, 131sq or 189sq end with digit 1?​

Answer 1

Answer:

ANSWER

As the numbers in set A have units digit as 9, they meet with the property in which units place in a no. has 1 or 9, then its square ends in 1

Answer 2

Answer:

49² , 131² and 189² ends with digit 1

Step-by-step explanation:

square of 242 is 58564

square of 49 is 2401

square of 77 is 5929

square of 131 is 17161

square of 189 is 35721

Thus answer is 49,131,189.

Done with the answer.

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