Math, asked by aarchi82, 10 months ago

please tell this question
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and explain each and every step please

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Answered by PrashantRai2810
2
total number of person = 9
hope this will help you
mark it brainliest
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PrashantRai2810: thank you aarchi
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siddhartharao77: Nice answer
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Answered by siddhartharao77
4

Answer:

9

Step-by-step explanation:

Let the total number of persons in the group be 'x'.

(i) Punctual = √x

(ii) Hardworking = 3.

(iii) Disciplined = (x/3).

Now,

According to the given condition,

⇒ (x/3) + √x + 3 = x

⇒ 2x + 3√x - 27 = 0

Let √x = y, then x = y²

⇒ 2y² + 3y - 27 = 0

⇒ 2y² + 9y - 6y + 27 = 0

⇒ y(2y + 9) - 3(2y + 9) = 0

⇒ (y - 3)(2y + 9) = 0

⇒ y = 3, -9/2{Neglect}

⇒ y = 3.

When y = 3:

⇒ x = y²

      = 9

Therefore,total number of persons in the group is 9.

Characteristics:

(i) Punctual = √x = √9 = 3

(ii) Hardworking = 3

(iii) Disciplined = (x/3) = 9/3 = 3

Every character is better in their own way.

Hope it helps!

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