Question

the mean of 10 number is 20,if 5 is subtracted from every number , what will be the new mean ?​

Answer 1

Answer:

15

Step-by-step explanation:

Mean of 10 numbers is 20

then total of 10 numbers = 20×10 = 200

After subtracted 5 from every numbers then new total = 200-(5×10) = 150

The new mean = 150÷10 = 15