The table given below shows the expenditure on six articles by two families A and B.
Which of the following statements is NOT correct?
(I) The expenditure on article R by A is 28.56% more than the expenditure on Q by B.
(II) The difference between average expenditure on article P and Q by A and the average expenditure on R and S by B is 20.
Answer & explanation
Correct answer: option 3
(I)The expenditure on article R by A = 80
The expenditure on Q by B = 70
Thus, the expenditure on article R by A is $\frac{10}{70}$ x 100 = 14.28% more than the expenditure on Q by B.
(II) Average expenditure on article P and Q by A = $\frac{Sum}{2}$
= $\frac{40+60}{2}$ = 50
Average expenditure on R and S by B is 20 = $\frac{Sum}{2}$
= $\frac{90+50}{2}$ = 70
Their difference = 20
Thus, statement II is correct