Practicing Success
The average marks scored by a student in 4 subjects is 75. But when the marks of English are added to it, the overall average became 70. How much did he score in English? |
50 60 55 65 |
50 |
Sum of marks in 4 subjects = 4 × 75 = 300 After adding english marks , New sum of 5 subjects = 5 × 70 = 350 English marks = 350 - 300 = 50 |