Question

find the surface area of given cuboid​

Answer 1

Answer:

,the height of the fifth boy = 168cm.

Step-by-step explanation:

Let the height of the fifth boy be 'xcm' ,

Given heights of 4 boys are 152cm,156cm,164cm and 160cm

Average height of 5 boys = 160cm

⇒(152cm+156cm+164cm+160cm+xcm)/5 = 160cm

⇒(632cm+xcm)/5 = 160cm

⇒632cm+xcm = 160cm×5 = 800cm

⇒xcm=800cm-632cm

⇒xcm=168cm .

Therefore,the height of the fifth boy = 168cm.