Math, asked by maitri24, 1 year ago

Please answer question number 15 and 16

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Answered by Anonymous
1
Hello user


Ans15..

Let the salary of C be 100

So, that of A = 100 - 20/100 × 100 = 100 - 20 = 80 ..... (1)

Also, that of B = 100 - 10/100 × 100 = 100 - 10 = 90 ......... (2)


Let A be x% of B

So, 90 × x/100 = 80

x = 8/9× 100 = 88.88

So, A is 88.88 % of B.

So , option B is correct

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Ans16...

Here , option B is correct again .

Because as we know that the product and sum of the roots of any polynomial must be a real number so the roots must exist in pair if they are imaginary because as we know that sum or product of any two imaginary number can be real if they are in conjugate pair .

So, option B is correct again here.

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Hope it works


maitri24: thanks for answering
Anonymous: welcm
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