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A survey of a village showed that 1 / 10 of the total population speak neither Hindi nor English. 1 / 5 of them cannot speak English and 3 / 7 of them cannot speak Hindi. What percentages of people know only one language?
A) 42.86 %
B) 40 %
C) 35 %
D) None of these
Read Solution (Total 1)
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- d)none of these
people educated=1-1/10=9/10
people knows eng=1-1/5=4/5
people knows hindi=1-3/7=4/7
so....people who only knows one lang={(4/5*4/7)/9/10}*100
i get 50.79.... - 13 years agoHelpfull: Yes(4) No(3)
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