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Mathematics

Grade-8

Easy

Question

Which of the following is the difference between the squares of 21 and 22?

21
22
42
43

hint Hint:

To find the solution for (22)² - (21)², we will simplify the expression and then solve for the final answer.

The correct answer is: 43

GIVEN-
Given numbers- 21 & 22
TO FIND-
Difference between the squares of the given numbers.
SOLUTION-
(22)² - (21)²
= 484 - 441
= 43
FINAL ANSWER-
Option 'a' i.e. '43' is the correct answer to the given question.

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