Question

The average of 30 number is 40 the of other 70 number is 60 what is the average of all the numbers

Answer 1

Answer:

$34 \frac{2}{7}$

Step-by-step explanation:

According to the question

Average of 30 numbers is = 40

Sum of 30 numbers is = 40×30 = 1200

Average of 40 numbers is = 30

Sum of 40 numbers is = 40×30 = 1200

Total Average = 1200+1200/70

=2400/70

$34 \frac{2}{7}$