Question

A student got 95marks in english and math and 105marks in english and history and 80mqrks in math and history.Find marks in all subjects

Answer 1

Answer:

Step-by-step explanation:

leu the marks in englis ,maths and history be x , y and z

x + y = 95

x + z = 105

y + z = 80

from x + z

z = 105 - x

from y + z

z = 80 - y

105 - x = 80 - y

from x+y

x = 95 - y

105 - 95 + y = 80 - y

10 + y = 80 - y

2y - 70 = 0

2y = 70

y = 35

x + y = 95

x + 35 = 95

x = 95 - 35

x = 60

y + z = 80

30 + z = 80

z = 80 - 35

z = 45

Therefore marks in english is 60

Maths is 35

History is 45

PLESE MARK AS BRAINLIEST