CAT 2024 Slot 3DILR Question 11

Mixed PracticeEasy
Passage / Data

Answer the following questions based on the information given below.

The figure below shows a network with three parallel roads represented by horizontal lines R-A, R-B, and R-C and another three parallel roads represented by vertical lines V1, V2, and V3. The figure also shows the distance (in km) between two adjacent intersections. Six ATMs are placed at six of the nine road intersections. Each ATM has a distinct integer cash requirement (in Rs. Lakhs), and the numbers at the end of each line in the figure indicate the total cash requirements of all ATMs placed on the corresponding road. For example, the total cash requirement of the ATM(s) placed on road R-A is Rs. 22 Lakhs.

Road network grid of R-A/R-B/R-C and V1/V2/V3 with totals and inter-intersection distances

Road / total (Rs. Lakhs)V1V2V3Row total
R-A···22
R-B···20
R-C···20
Column total15212662

Distances between adjacent intersections (in km): along R-A, V1–V2 = 4 km and V2–V3 = 7 km; along V3, R-A–R-B = 3 km and R-B–R-C = 5 km.

The following additional information is known.
1. The ATMs with the minimum and maximum cash requirements of Rs. 7 Lakhs and Rs. 15 Lakhs are placed on the same road.
2. The road distance between the ATM with the second highest cash requirement and the ATM located at the intersection of R-C and V3 is 12 km.

How many ATMs have cash requirements of Rs. 10 Lakhs or more?

Answer & solution

Answer: 3

Solution

Easy

The six cash values are fixed regardless of arrangement; just count those that are at least 10.

Six cash values (Rs. Lakhs) ={7,8,9,11,12,15}=\{7,8,9,11,12,15\} (established for this set).

1

Count values 10\ge 10.

{11,12,15}10 count=3\begin{aligned} &\{11,12,15\}\ge 10\\ &\Rightarrow\ \text{count}=3 \end{aligned}
33
CAT 2024 Slot 3 DILR Q11: How many ATMs have cash requirements of Rs. 10 Lakhs or more? — Solution | TheCATExam