Question:
A third of Arun’s marks in mathematics exceeds half of his marks in English by 80.if he got 240 marks In two subjects together how many marks did he got in English?
A ) 70
B ) 65
C ) 50
D ) 60
Answer : D) 60
Explanation :
Let Arun’s marks in mathematics and English be x and y
Then 1/3x-1/2y=30
2x-3y=180……>(1)
x+y=240…….>(2)
Solving (1) and (2)
x=180 and y=60
A third of Arun’s marks in mathematics exceeds half of his marks in English by 80.if he got 240 marks In two subjects together how many marks did he got in English?
A ) 70
B ) 65
C ) 50
D ) 60
Answer : D) 60
Explanation :
Let Arun’s marks in mathematics and English be x and y
Then 1/3x-1/2y=30
2x-3y=180……>(1)
x+y=240…….>(2)
Solving (1) and (2)
x=180 and y=60
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