Equations And Inequalities Question 24
Question: The marks obtained by a student of class $ XI $ in first and second terminal examinations are 62 and 48, respectively. The minimum marks he should get in the annual examination to have an average of at least 60 marks, are
Options:
A) 70
B) 50
C) 74
D) 48
Show Answer
Answer:
Correct Answer: A
Solution:
- [a] Let x be the marks obtained by student in the annual examination. Then, $ \frac{62+48+x}{3}\ge 60 $ or $ 110+x\ge 180 $ or $ x\ge 70 $ Thus, the student must obtain a minimum of 70 marks to get an average of at least 60 marks.
BETA
