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Question

Kavita, a student preparing for CSAT, told that she did everyday 3 more passages of English than that of previous day and thus she completed all the passages in 10 days. Later on she told me that the number of passages she did on the last but one day were four times that she did on the second day
Number of passages she done on the last day:


Your Answer
A
30
Your Answer
B
41
Your Answer
C
32
Correct Answer
D
None of the above

Solution

The correct option is B None of the above
Let she did c number of passage on the first day. It means second, third, fourth, .., nineth and tenth day she did
(x+3) (x+6) (x+9) … (x+24) and (x+27) passages
Now since         (x+24) = 4 (x+3)
                             3x = 12
                               x = 4
Therefore the number of passages she did on the last day = x + 27 = 31

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