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) 370
B) 380
C) 360
D) 280
E) 310
Correct Answer: A
Solution :
Reqd average \[=\frac{420\times \frac{5}{6}+320\times \frac{5}{4}+300\times \frac{6}{5}}{3}\] \[=\frac{1}{3}\times (350+400+360)=\frac{1}{3}\times 1110=370\]You need to login to perform this action.
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