Question

find the least which must be added to 16621 to make it a perfect square​

Answer 1

Step-by-step explanation:

In this problem,

First, We have to find the square root of

18,265

It can be written as

18265−−−−−√

The value of

18265−−−−−√=135.148

Let us take a number which is closer to this

135

We can see that when we square the number 135 ,

(135)2=18225 .

So according to this number if we want to make the given number a perfect square we have to subtract the number, but in the question we have to add the number to make it a perfect square.

So now we will find the square of the next nearest number i.e.

136 .

Upon squaring it gives us value

(136)2=18496 .

Now we subtract both these numbers i.e.

18496−18265=231 .

It means that if we add 231 to 18265 , then it will be a perfect square.

Hence the required answer is 231 .

So, the correct answer is “ 231 ”.

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Answer 2

Answer:

20 is the least number which should be added to 16621 to get a perfect square.

First try to find the square root of 16621 you'll get 128 as the quotient and 237 as the remainder. Now add 1 to the quotient and then square the number and after squaring the quotient added with one subtract 16621 you'll get the answer 20.

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