To mark ¼ m, ½ m and ¾
m on a string of length 1 m
pleSe solve this activity
Answers
Step-by-step explanation:
Let the average height of the 20 toddlers be x inches. When the 2 toddlers are included, the average of the group comes down by 2, i.e. it becomes x – 2.
Also, given, that the average height of the 2 toddlers is one-third of the average height of the 22 toddlers, x – 2.
20(x) + 2(x - 2)/3 = (x - 2) × 22
Upon solving,
x = 32 inches.
The correct option is C.
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