If the average height of 20 girls in the class is 130 cm and the average height of 20 boys is 134 cm, what is the average height of all the students in the class?
1️⃣ 132.5 cm
2️⃣ 133 cm
3️⃣ 132 cm
4️⃣ 131.5 cm
Pls say the right answer
Answers
Answered by
2
Answer:
answer is 132 cm option 3
Answered by
1
Answer:
Aeverage height of 20 girls in the class is 130cm and the aeverage height 20 boys is 134cm.
Average height of all the students.
Average height of 20 girls = 130 cm
Average height of 20 boys = 134 cm
Average height of the class =
Substituting the values,
Therefore,
Step-by-step explanation:
Similar questions