# CAT 2020 [Slot 3] DILR set 4

XYZ organization got into the business of delivering groceries to home at the beginning of the last month. They have a two-day delivery promise. However, their deliveries are unreliable. An order booked on a particular day may be delivered the next day or the day after. If the order is not delivered at the end of two days, then the order is declared as lost at the end of the second day. XYZ then does not deliver the order, but informs the customer, marks the order as lost, returns the payment and pays a penalty for non-delivery.

The following table provides details about the operations of XYZ for a week of the last month. The first column gives the date, the second gives the cumulative number of orders that were booked up to and including that day. The third column represents the number of orders delivered on that day. The last column gives the cumulative number of orders that were lost up to and including that day.

It is known that the numbers of orders that were booked on the 11th, 12th, and 13th of the last month that took two days to deliver were 4, 6, and 8 respectively.

 Day Cumulative orders booked Orders delivered on day Cumulative orders lost 13th 219 11 91 14th 249 27 92 15th 277 23 94 16th 302 11 106 17th 327 21 118 18th 332 13 120 19th 337 14 129

Question 1:

Among the following days, the largest fraction of orders booked on which day was lost?

1. 14th
2. 13th
3. 15th
4. 16th
OPTION: 3

Question 2:

On which of the following days was the number of orders booked the highest?

1. 13th
2. 15th
3. 12th
4. 14th
OPTION: 1

Question 3:

The delivery ratio for a given day is defined as the ratio of the number of orders booked on that day which are delivered on the next day to the number of orders booked on that day which are delivered on the second day after booking. On which of the following days, was the delivery ratio the highest?

1. 13th
2. 16th
3. 14th
4. 15th
OPTION: 3

Question 4:

The average time taken to deliver orders booked on a particular day is computed as follows. Let the number of orders delivered the next day be x and the number of orders delivered the day after be y. Then the average time to deliver order is (x+2y)/(x+y). On which of the following days was the average time taken to deliver orders booked the least?

1. 14th
2. 16th
3. 15th
4. 13th
OPTION: 1

Question 1:

$14^{\text {th }}$ day $\Rightarrow 30$ Booked $\Rightarrow 12$ loss $\Rightarrow \frac{12}{30}$

$13^{ th } day \Rightarrow 31$ Booked $\Rightarrow 2$ loss $=\frac{2}{31}$

$16^{\text {th }}$ day $\Rightarrow 25$ Booked $\Rightarrow 2$ loss $\Rightarrow \frac{2}{25}$

$15^{\text {th }}$ day $\Rightarrow 28$ Booked $\Rightarrow 12$ loss $\Rightarrow \frac{12}{28}$

The highest value is $\frac{12}{28},$ on the $15^{\text {th }}$ day.

Option: 3
Question 2:

Highest order Booked on $13^{\text {th }}$ day.

Option: 1
Question 3:

Delivery ratio $=\frac{\text { Next day }}{\text { day after }}$

a. $13^{\text {th }}$ day $\Rightarrow \frac{21}{8}$

b. $15^{\text {th }}$ day $\Rightarrow \frac{8}{8}$

c. $14^{\text {th }}$ day $\Rightarrow \frac{15}{3}$

d. $16^{\text {th }}$ day $\Rightarrow \frac{13}{10}$

The highest ratio is $\frac{15}{3},$ on $14^{\text {th }}$ day

Option: 3
Question 4:

The least is on the $14^{\text {th }}$ day.

Option: 1

### CAT 2020 LRDI sets with Solutions

CAT 2020 LRDI set 1
CAT 2020 LRDI set 2
CAT 2020 LRDI set 3
CAT 2020 LRDI set 4
CAT 2020 LRDI set 5
CAT 2020 LRDI set 6
CAT 2020 LRDI set 7
CAT 2020 LRDI set 8
CAT 2020 LRDI set 9
CAT 2020 LRDI set 10
CAT 2020 LRDI set 11
CAT 2020 LRDI set 12
CAT 2020 LRDI set 13
CAT 2020 LRDI set 14 [Current page]
CAT 2020 LRDI set 15