Question

The average pf number 7 is 60. The average of the frist 3 number is 50, while the average of last three number is 70. What must be the remaining numbers

Answer 1

7×60=420
Total of 1st 3 numbers= 3×50=150
Total of last three numbers =3×70=210
Total of 6 numbers =210+150=360
So, the remaining number is 420-360=60