Question

plz answer fast it's urgent

Answer 1

A)let the lowest marks be x
According to the case,
2x+7 =87
2x=80
x =40
Lowest mark =40
B) let the base angles be x
Since isoceles tringle both base angles are same
x +x +40=180 (angle sum property)
2x=140
X=70
Each base angle is 70°
C)let the euns scored by rahul be x
Sachin score =2x
Total score = 198
x +2x =198
3x=198
x = 66
Sachin scored 132
Rahul score 66
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Answer 2

let the lowest marks be x
according to question
..
2x+7 = 87
2x = 87-7
2x =80
x=80/2
x = 40
lowest marks are 40
2
..
base angles be x
other be 2x
...
2x+x+x=180
4x=180
x= 180/4
x=45
base angles are 45
other is 45×2 =90
....
3...
let sachin's score as 2x
rahul as x
according to question
2x+x = 200-2
3x = 198
x =198/3
x = 66
sachin scored 2×66 = 132
rahul scored = 66