Question

the mean of the three number is 8 the mean of the Other four number is 15 find the mean of all numbers​.​

Answer 1

Answer:

mean of three no.is=8

mean of other four no.{15

Step-by-step explanation:

mean of all no.=²22

Answer 2

Answer:

here is ur answer:-)

let the 3 numbers be x,y,z

x+y+z/3=8

let other four numbers be a,b,c,d

a+b+c+d/4=15

now

x+y+z=24

and

a+b+c+d=60

add both

x+y+z+a+b+c+d=84

now to find mean divide by 7 as their are 7 numbers

so answer is 84/7=12

answer=12

hope it helps ..

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