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rahul has scored average of 65 marks in three objects .in no subjects has he secured less than 59 marks.he has secured more marks in science than other two subjects.what could be his maximum score in science
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- TOTAL MARKS IN 3 SUBJ =3*65= 195
LET SCIENCE MARKS BE =X
X +59 +59 =195
X=77 - 10 years agoHelpfull: Yes(10) No(1)
- Assuming he has scored the least marks in subject other than science ,Then the marks he could secure in other two are 59 each .Since the average mark of all the 3 subject is 65.
i.e (59+59+x)/3 = 65
118+x=195
x=77 marks - 9 years agoHelpfull: Yes(3) No(0)
- the avg mark =65*3=195
now the other two have marks =2*59=118
science mark=195-118=77 - 9 years agoHelpfull: Yes(1) No(0)
- 65*3-59*2=77
- 9 years agoHelpfull: Yes(0) No(0)
- (x+y+z)/3=65
x+y+z=195
then from question y=z=59
so ,x=195-118=77 - 9 years agoHelpfull: Yes(0) No(0)
- 3(59)+s+a+b=195
a,b are other two subject more excess marks than 59
a,b can be 0
Smax=18
maxmark in science =18+59=77 - 9 years agoHelpfull: Yes(0) No(0)
- 77
For maximum marks in science Rahul should have minimum marks in other two subjects which is given 59.
thus (59+59+x)/3=65 which on solving gives 77. - 9 years agoHelpfull: Yes(0) No(0)
- average in 3 subjects is 65 = 65x3=195
least possible score in the remaining 2 subjects= 59x2=118
hence maximum marks possible in science= 195 - 118 = 77 - 7 years agoHelpfull: Yes(0) No(0)
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