Day | Number of Iiterates(males + females) | Overall ratio (IIIiterates: Literates ) (Out of those who attended ) | Number of males (Literates + IIIiterates)(Out of those who attended ) |
Sunday | 420 | 5 : 6 | 250 |
Monday | 350 | 3 : 5 | 240 |
Tuesday | 320 | 5 : 4 | 320 |
Wednesday | 300 | 6 : 5 | 300 |
Thursday | 420 | 2 : 3 | 320. |
A) 5 : 6
B) 7 : 9
C) 4 : 7
D) 9 : 7
E) 3 : 2
Correct Answer: B
Solution :
Number of Illiterate (males + females) on Monday \[=350\times \frac{3}{5}=210\] \[\therefore \]Number of Illiterate (males + females) on Tuesday\[=320\times \frac{5}{4}=400\] \[\therefore \]Number of females (Liteate + Illiterate) on Monday = (350 + 210 - 240) = 320 Similarly on Tuesday = (320 + 400 - 320) = 400 \[\therefore \]Reqd ratio\[=\frac{240+320}{320+400}=\frac{560}{720}=\frac{7}{9}\] = 7 : 9You need to login to perform this action.
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