Question

the average of 7 consecutive even number is 10. if the next two three even numbers are included then find the new average

Answer 1

let the numbers be
x,x+1 ,x+2 ,x+3 ,x+4 ,x+5,x+6

their average is 10
x + x + 1 + x + 2+x + 3+ x+ 4+x + 5 + x+6 = 10×7
7x + 21 = 70
7x = 70-21
x = 49 / 7
x = 7
then the numbers are
7,8,9,10,11,12,13

next 3 numbers are 14,15,16

the average

7+8+9+10+11+12+13+14+15+16/10 = 115/10
= 11.5

the required average = 11.5

here is ur answer

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Answer 2

Answer:

it's is 12

Step-by-step explanation:

you got it

thank u