Wipro Company Numerical Ability Probability

A survey was taken among 100 brainiacs. Of those surveyed, twice as many brainiacs likerebus teasers as math teasers. If 18 brainiacs like both rebus teasers and math teasers and 4like neither kind of teaser, how many brainiacs like math teasers but not rebus teasers?

Read Solution (Total 2)

let X brainiacs like ONLY rebus teasers and Y brainiacs like ONLY math teasers .
NOW,X+Y=100-18-4=78.
ALSO GIVEN THAT,X+18=2(Y+18)
X=2Y+18.
78-Y=2Y+18
3Y=60
Y=20
SO 20 brainiacs like math teasers but not rebus teasers
12 years agoHelpfull: Yes(9) No(5)

correct ans is
let x be total mathteasers likers .

(2x-18)+ ( x-18) +18 + 4= 100 .
so x= 38
therfore , x= 38- 18 = 20 ans
10 years agoHelpfull: Yes(1) No(0)

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