What is the ratio between the number of orders returned on Wednesday to that returned on Friday ........

Quantitative Aptitude (SBI-PO) Line Chart

Direction: Study the line graph given below to answer the following questions.
The line graph given below shows the percentage of orders delivered from Monday to Saturday of week III out of the orders received on Sunday of Week II and it also shows the number of orders returned on any given day as a percentage of total number of orders delivered till previous day.

Note:
• Number of orders which were yet to be delivered after Saturday of week III were 25.
• Orders cannot be returned on the same day of delivery. It has to be returned on next day of delivery and no order was returned on Sunday of Week III.

What is the ratio between the number of orders returned on Wednesday to that returned on Friday?

9 : 7

4 : 5

5 : 4

7 : 9

None of the above

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Explanation:

Total percentage of orders delivered from Monday to Saturday of week III =
16% + 12% + 24% + 20% + 8% + 15% = 95%
Remaining Orders = 100% – 95% = 5%
It is given that, number of orders which were not delivered = 25
Thus, 5% of total orders = 25
So, total number of orders received on Sunday of week II = 25 ×100/5 = 500
Now, we can calculate the number of orders delivered on each day and also the number of orders which were returned.