Question

The average height of 5 students is 150 centimetres. One more student of height 120 centimetres joins the group. find the new average height.​

Answer 1

Answer:

Average of 5 student is 150

i.e Sum of 5 Student/5 = 150

sum of student = 750

Now ,one more student of height 120cm is added so 750+120 =870

therefore Average of Six student = Sum of six student/6

=870/6

=145

Average height of six student is 145 cm

Answer 2

Answer:

145cm

Step-by-step explanation:

sum of 5 student's height = 5*150 = 750

adding 6th student height = 750+120 = 870cm

average height = 870/6 = 145cm

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