M4maths Previous Puzzles

05 Sep 2014 Solve

Suresh got 88% in board examination of intermediate. His average in English and Hindi is 90%. Average of Physics, Chemistry and Hindi is 86%. Minimum marks in any subject is 80 and maximum 92. Out of 10 options given below which may be the marks in Hindi.

OPtion

1) 85
2) 82
3) 84
4) 92
5) 83
6) 86
7) 80
8) 89
9) 92
10)None of these

Solution

According to given conditions
p + c + m + e + h = 440
e + h = 180
b + c + h = 258
first and third equations give
m + e = 182
From fourth equation
90 is less than equal to m is less than equal to 92
90 is less than equal to e is less than equal to 92 and from second equation
88 is less than equal to h is less than equal to 90
So possibilities for hindi are 88 89 90

Correct Option: 8 Best Solution (15)

ranjithreddy   10 years AGO

If E+H=180,Assume E=91,H=89.
P+C+H=258,Assume P=85,C=84,H=89.

Like? Yes (1) | No   

Nitish kumar   10 years AGO

(e+h)=90*2=180,,so e may lies between(88 and 92)------(i)
,(p+c+h)=86*3=258
(p+c+h+e+m)=88*5=440
(m+e)=440-258=182(e may lies between 90 and 92)-----(ii)
so from (i) and (ii) h may lies between (88 and 90);
only option present is 89 so option 8 is correct.

Like? Yes (1) | No   

Nomendra Sinha   10 years AGO

If in hindi 89 then in english 91
average of physics & chemistry is 83
all between 80 & 92

Like? Yes (1) | No   

sai   10 years AGO

438-2h+h+x=528
-h=x-90
hindi 89

Like? Yes (1) | No   

Rajeev Kumar Garikapati   10 years AGO

3 subjects have % 86(P,C,H) & Another 3 should Have 90%. So we have only two options 92 and 89 for H,E. Max to satisfy two conditions hindhi should be 89. 89 is the medium value.

Like? Yes (1) | No   

gaurav   10 years AGO

option - 8)89

Like? Yes (1) | No   

madhusudhanreddy   10 years AGO

total percentage is 88%
avg of e &h is 90%
min marks in any sub is 80 and max 92
so by these condition we get chance of hindi marks are 88,89,90,91 then we found ans that 89 in option
this is reason we chosen 8th option

Like? Yes (1) | No   

sundeep gullapudi   10 years AGO

just a guess ..i think hindi is more than 88 ..so there will be chance of getting 89 ,92 ..i answered

Like? Yes (1) | No   

puja agarwal   10 years AGO

89

Like? Yes (1) | No (1)  

Preethi Sreeramula   10 years AGO

avg in E n H=90
avg in P n C n H=86
total sum in english n hindi=180
total sum in physics chemistry n hindi=258
by comparing the given conditions it is clear that percentage in hindi lies between 80-89
by the 1st condition hindi=89

Like? Yes (20) | No (24)  

vivek   10 years AGO

total marks=(e+h+p+c+5th)=88*5=440
if he scored 88 to 90 marks in hindi then only he scored 90 to 92 in 5th subject. (80

Like? Yes (11) | No (16)  

Sowmiya   10 years AGO

least mark=80
highest mark=92
total marks=352
By using trial and error if we choose 86 , 94 wil b the other ans
if v choose 89 , 91 wil b the other ans
89+91=180/2=90%
so hindi mark= 89

Like? Yes (7) | No (15)  

Kumar Vishal   10 years AGO

6

Like? Yes (3) | No (16)  

Rahul rahul   10 years AGO

according to question range possible for marks in hindi is 88-92
so ans is 89

Like? Yes (1) | No (15)  

shree   10 years AGO

8999999

Like? Yes (1) | No (17)