Question

The average height of 4 men is 183cm. The average height becomes 185cm after another man joined the group. What is the height of the fifth man?

Answer 1

Answer:

193 cm

Step-by-step explanation:

let the first 4 men are a,b,c,d

A.T.Q

a+b+c+d/4=183  cm

now let the fifth men is z

A.T.Q    a+b+c+d+z/5=185 cm

             a+b+c+d+z =185 *5=925

now devide both side by 4

a+b+c+d+z/4=925/4

we can also write it

a+b+c+d/4+z/4=925/4

183+z/4=925/4

z/4=(925-732)/4

z=193cm

Answer 2

Average height of 4 men = 183 cm

Sum of heights of 4 men = 4*183 = 732

Average height of 5 men = 185

Sum of heights of 5 men = 5*185 = 925

Height of the 5th man = 925 - 732 = 193 cm