Question

Study the line graph and answer the given questions. The given graph indicates the marks scored in two subjects namely physics and chemistry by 5 students in an examination. Use the information to answer the question.
Q. If the marks obtained by Judy in physics is increased by $14\frac{2}{7}\%$ then what will be the average of the marks obtained by Mathew, Amal and Judy in physics?

• A. 85
• B. 58
• C. 56
• D. 82
• E. 52

Answer 1

The correct option is B 58

New marks obtained by Judy in physics = $56\times \frac{800}{700}=64$
= 64
Average marks of Mathew, Amal and Judy in physics
$=\frac{46+64+64}{3}$
= 58