Question

Aryan is 3 kg heavier than Bobby but 6kg lighter than Hina.The average weight of the three children is 30kg.What is the weight of bobby?​

Answer 1

Answer:

let Aryan's weight be x kg

then, bobby's weight = x-3 kg

and, hina's weight= x+6 kg

x+x-3+x+6=3*30

3x+3=90

3x=87

x=29 kg

Therefore, Bobby's weight=29-3 kg=26 kg

Answer 2

Hello!

Here is the answer for your question!

Question:-  Aryan is 3 kg heavier than Bobby but 6kg lighter than Hina. The average weight of the three children is 30kg. What is the weight of bobby?​

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Answer:-

• Let the weight of Aryan be y

    Then, weight of Bobby :- y - 3

               weight of Hina :- y + 6

• Average weight of three children = 30 kg

So, $\frac{y+(y-3)+(y+6)}{3} = 30$

 =    $\frac{3y+3}{3}=30$

 =   3y + 3 = 90  (cross multiplication)

        y = $\frac{87}{3}$

Value of y = 29

Weight of Bobby = y - 3

= 29 - 3 = 26kg

weight of Aryan:- 29kg, weight of Bobby:- 26kg, weight of Hina:- 35kg

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