Question 18
The average presence of employees of a company for yoga sessions in an office on Monday, Tuesday and Wednesday is thirty two and on the Wednesday, Thursday, Friday and Saturday is thirty. If the average number of employees on all the six days is twenty six then the number of employees who attended the sessions on Wednesday is?
Solution
Let the number of students who attended yoga session on Monday, Tuesday ,Wednesday, Thursday, Friday & Saturday be {M,T,W,TH,F,S} respectively.
M+T+W = 32(3) = 96... Equation 1
W+TH+F+S = 30(4) = 120......Equation 2
M+T+W+TH+F+S = 26(6) = 156.........Equation 3
Now by substituting equation 2 in equation 3 : We get, M+T = 156-120 = 36
Now, by using equation 1 , we can say that W = 96-36 = 60.
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