Question

Which is the least number by which 400 is to be multiplied so that the number obtained

is a perfect square? Also, find the square root of the resulting number.​

Answer 1

a

Step-by-step explanation:

therefore402-2=400

Hence, the square root of 400 is 20

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Answer 2

Answer:

it should be multiplied by 25

Step-by-step explanation:

400 multipliEd by 25 to get 10000

10000 is perfect square number

now square root of 10000 is 500

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