SSC CGL – Combined Graduate Level Examination · Question 58

The average of 15 numbers is 80. The average of the first 6 numbers is 72. The average of the next 6 numbers is 25% more than the average of the first 6 numbers. The 13th number is 8 more than the 15th number, and the 14th number is 10 less than the 15th number. What is the average of the 13th and 14th numbers?

1. A70.89
2. B85
3. C75.67
4. D80.65