Question

the average height of 30boys out of a class of 50 is 160cm.if the average height of the remaining boys is 165,the average height of the whole class is cm is?

Answer 1

Answer:

If the average height of the remaining boys is 165 cm, the average height of the whole class (in cm) is. 161. 162

Step-by-step explanation:

Read Solution (Total 3)

(30x160+20x165)/50=162

Answer 2

Step-by-step explanation:

Average height of whole class = 30 × 160 + 20 × 165 cm50Average height of whole class = 4800 + 3300 cm50Average height of whole class = 8100 cm50Average height of whole class = 162 cm

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