Here are two sets of numbers, A and B. Set A
281
268
225
290
Set B
392
512
413
422
у
mean of Set A: mean of Set B = 7:12
Work out the value of y.​

No because if you do the higher number minus the lower number you will get a positive. if you do it the other way around you will get a negative number

It is the top one. the answer is -7. that is smallest

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.