Average - Discussion Page For Q.56 | Aptitude Questions and Answers | Aptitude Free Online-Tests | LucentBlackBoard

Home > Arithmetic Aptitude > Average > Questions and Answers Discussion

A batsman is out for 23 runs, which raises his average for the season from 15 to 16. How many runs would he have to score in that innings (in which he scored 23) to bring his average up to 18?

A.	33	B.	37
C.	39	D.	42

Answer and Explanation

Answer:39

Explanation:
Had the batsman scored 15 runs in the last inning, his average would have been constant at 15. He scores 8 runs more than 15, which raises his average by 1.
∴ The last must have been his 8 / 1 = 8th innings.
To raise his average by 3, he required to score 8 Ã— 3 = 24 runs more than his previous average in the 8th innings => he need to score 39

Comment on this Question
Name:

LucentBlackBoard.com has the web's largest collection of over 15,000 aptitude questions and answers with detailed explanation which include subjects like Arithmetic Aptitude, Logical Reasoning, Verbal Ability, General Knowledge, Programming Skills and more!

Our online education portal provides a unique and standard learning experience for students. We enable the students to prepare for most of the entrance and competitive exams like MBA (MAT, GMAT), Engineering (IIT-JEE, AIEEE, GATE), Employment (IAS, Bank PO, Railway, UGCNET), Civil Services and many more. We bring you the best in education by providing technical excellence and creating innovative solutions. We provide facility for online test preparation that offers 24/7 access to relevant subject matter and relative tests. These test preparations help the students to groom themselves and get prepared before actually facing the examination.