Average of 1st 3 numbers out of 7 is 11 more than average of 7 and 5th,6th,7th number is 8,5 and 29 less than average of 7 number rest. of 4th number is 89,then find average of initial 3 number
Average of 1st 3 numbers out of 7 is 11 more than average of 7 and 5th,6th,7th number is 8,5 and 29 less than average of 7 number rest. of 4th number is 89,then find average of initial 3 number