the average height of child in group of 5 is 1 m 10 cm.if the 5th child height is 1 m 40 cm.find the new average of child in group of 6.
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Answer:
1 m 70 cm
Step-by-step explanation:
1 m 10 cm +30=1 m 40 cm +30= 1 m 70 cm
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