Question 58

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 ?

Solution

Average height of 8 students = 152 cm

=> Total height of 8 students = $$152\times8=1216$$ cm

After addition of 2 students, total students of 10 students = $$1216+144+155=1515$$

$$\therefore$$ New average height = $$\frac{1515}{10}=151.5$$ cm

=> Ans - (A)

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