Question

If Set P={a,b,c,-5,-10};Set R ={a,b,c,5,10} and if the average of Set P is ‘s’ and average of Set R is ‘t’, then what is the value of a-t?

Answer 1

Answer:

4t-b-c-15

Explanation:

a+b+c+15/5=t

5t=a+b+c+15

4t+t=a+b+c+15

4t-b-c-15=a-t