Fraction - Quantitative Aptitude (MCQ) questions for Q. 29454

Q.  In a class 3/4th of the students do not know either English or Hindi. But 1/6th of the students know English. How much students know both English and Hindi if students who know Hindi are 1/8th of total students in the class?
- Published on 13 Apr 17

a. 1/24
b. 100/24
c. 10/12
d. 1/4

ANSWER: 1/24
 
fraction

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    Discussion

  • Sameer MN   -Posted on 19 Sep 26
    upper calculation was wrong do this look at the option denominator 24 is their in two option 1 nd two so answer may be 1 or 2
    3/4 students dont know hindi nd english remaining 1/4 students know atleast hindi or engish or both so,
    1/4-1/6-1/8=-1/24
    option 1 was right but it was positive
    here we took hindi or english or both atleast so sign will changes
  • Sameer MN   -Posted on 19 Sep 26
    The students who know english = 1/6
    hindi = 1/8
    add both english nd hindi students= 7/24
    the students who dont know hindi or english =3/4
    then the remaining students must know both hindi nd english 7/24-3/4=1/24
    simple formula english+hindi-students dont know both=students know both
  • Shiva Rajeshwari    -Posted on 22 Jul 24
    Alternative way to solve
    3/4 + 1/6 + 1/8 + x =1
    18+4+3+24x/24=1
    25+24x = 24
    24x=-1
    X=1/24
  • Baba Dhalaram Hansdah   -Posted on 23 Dec 20
    from where did 1/4th came?

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