Xavier Aptitude Test 2017 Solved Paper

Study the data given in the caselet below and answer the questions 63-64 that follow:
In an innings of a T20 cricket match (a team can bowl for 20 overs) 6 bowlers bowled from the fielding side, with a bowler allowed maximum of 4 overs. Only the three specialist bowlers bowled their full quota of 4 overs each, and the remaining 8 overs were shared among three non-specialist bowlers. The economy rates of four bowlers were 6 . 6 ,7 and 9 respectively. (Economy rate is the total number o f runs conceded by a bowler divided by the number o f overs bowled by that bowler). This however, does not include the data of the best bowler {lowest economy rate) and the worst bowler {highest economy rate). The number of overs bowled and the economy rate of any bowler are in integers.