Average height of 21 boys is 148cm.the height increased by 1 cm when teacher height is added.what was teachers height
Answers
Answered by
0
Answer:
68
Step-by-step explanation:
x+22=90.
So,x=90-22 according to transposition method.
90-22=68
Answered by
15
=> Total height of 21 boys = 21 × 148
=> 3108 cm
=> If teacher height is added, then the average is increased by 1 cm.
=> Total height of all boys = 21 × 149
=> 3278 cm
=> Teacher height = 3278 - 3108
=> 170 cm
I hope this will help you dear..
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