Question

If the average weight of 6 students is 50 kg, that of 2 students is 55 kg and that of rest of 2 students is 55 kg, then the average weight of all the students is ?​

Answer 1

Answer:

$\huge\underline\bold {Answer:}$

Total weight of 6 students = 6 × 50 kg = 300 kg

Total weight of 2 students = 2 × 51 kg = 102 kg

Total weight of 2 students = 2 × 55 kg = 110 kg.

Average weight of all the students = Total weight/Number of students = (300 + 102 + 110) ÷ 10 kg

= 512/10 kg

= 51.2 kg.

Therefore average weight of all students is 51.2 kg.

Answer 2

$\Huge\mathcal{\underline{\red{Answer\::-}}}$

➣ Formula:-

$\green{\boxed{average \: weight \: = \frac{total \: weight}{total \: student}}}$

➣ Given:-

➢ Total Weight:-

⟿ 6 * 50 + 2 * 55 + 2 * 55

⟿ 512 kg

➢ Total Students:-

⟿ 6 + 2 + 2

⟿ 10 students

Put values into formula,

$\bold{➳ \frac{512}{10} }$

$\orange{\boxed{➵ 51.2 \: kg}}$

Here's Is Ur Required Answer.

$\Huge\mathcal{\underline{\blue{Hope\:It\: Helps\:U}}}$