1. The average height of 8 students is 152 cm. Two more students of heights 144 cm and 155 cm join the group. What is the new average height ?
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By: anil on 05 May 2019 02.24 am
Average height of 8 students = 152 cm => Total height of 8 students = $$152 imes8=1216$$ cm After addition of 2 students, total students of 10 students = $$1216+144+155=1515$$ $$ herefore$$ New average height = $$frac{1515}{10}=151.5$$ cm => Ans - (A)
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