Question

.of a set of 30 numbers average of first 10 numbers =average of last 20 numbers then the sum of the last 20 numbers is? a)sum of first ten numbers b)2* sum of first ten numbers c)cannot be determined d)4* sum of last ten numbers; .of a set of 30 numbers average of first 10 numbers =average of last 20 numbers then the sum of the last 20 numbers is? a)sum of first ten numbers b)2* sum of first ten numbers c)cannot be determined d)4* sum of last ten numbers

Answer 1

option A is the answer