akshay scores 80 in physics and 66 in chemistry and the maximum marks of both the papers are 100 what

((80*100/100)+(66*100/100)+(x*200/100))/4=80 (let % of maths be x)
x=87%
10 years agoHelpfull: Yes(5) No(2)
(80+66+x)/400 *100=80
x=174
10 years agoHelpfull: Yes(4) No(2)
((80+66+x)*100)/400=80
x=174
x%=(174/200)*100
=87%
10 years agoHelpfull: Yes(3) No(0)
total 320 marks he have to get to make allover 80 %.
he already got 80 in ph and 66 in chm, i.e 146 with in 200.
so! 320-146=174 marks needed to make all over 80%.
becoz math max no. 200 so! 174/2=87% he have to get...
ans =87.
10 years agoHelpfull: Yes(2) No(0)
The percentage scored by akshay in maths would be 87%.
Soln : total marks = 400 (100 + 100 + 200)
total marks obtained = 80 + 66 + x
now ((80 + 66 + x) / 400) * 100 = 80
x = 174
Now %age in matematics = (174/200)*100 = 87
10 years agoHelpfull: Yes(1) No(1)
let assume he scores x in maths.
asper the question he scores 80 out of 100 in physics and 66 in out of 100 in chemistry.
so we can write (80+66+x) 80
=> ------------- = -----
400 100
=>80+66+x=320
=>x=320-80-66
=>x=174
so he scores 174 out of 200 ,then we in percentage it is 87%.
5 years agoHelpfull: Yes(1) No(0)
(88+66+x)/400=0.8
x=166ans
10 years agoHelpfull: Yes(0) No(8)
His total score for physics and chemistry for 200 marks
Is = 80+66=146

His total percentage for three subjects is 80%
That means,
(146+X)/400=(80/100)
X=172

Thus, he has to score 172 marks out of 200 in maths.For 100, he has to score (172/2)=86 marks.
10 years agoHelpfull: Yes(0) No(2)

akshay scores 80% in physics and 66% in chemistry and the maximum marks of both the papers are 100.what percent does he score in maths which is of 200 marks,if he scores 80% marks in all the three subjects?