Question

the average of three number is 12 the two number are 15 and 10 respectively what is the average rainfall ​

Answer 1

Answer:

21 cm is the right answer

Step-by-step explanation:

hope it helps you

Answer 2

Answer:

third no. = 11

Step-by-step explanation:

average of three no. are = 12

sum of all no. are = 12 × 3 = 36

first no. = 15

second no. = 10

third no. = 36 - (15 + 10)

= 36 - 25

= 11