DI: Revenues of Four Companies (2015-2019)

Question 1

Which of the given companies has seen the highest year-on-year growth (in percentage) in any single year during this five-year period?

Accepted Answer

D. Calculating YoY growths: Q from 2016 to 2017: $\frac{180 - 140}{140} = \frac{40}{140} = 28.57\%$. P from 2017 to 2018: $\frac{250 - 200}{200} = 25\%$. Checking other YoY growths, Q's $28.57\%$ in 2017 is the highest.

Question 2

It was discovered later that one of the companies misreported its revenue of one of the years. If the misreported revenue is replaced by the correct revenue, the revenues of that company over the five-year period will be in an arithmetic progression. The company that misreported its revenue was

Accepted Answer

D. For P: 150, 175, 200, (225 instead of 250), 250 forms an AP with common difference 25. For S: 100, 120, 140, (160 instead of 170), 180 forms an AP with common difference 20. Hence, either P or S could be the company that misreported.

Question 3

During the period from 2014 to 2015, the revenue increased by 25% for three of the companies and by 50% for the remaining company. The total increase in revenue, for all four companies put together, was Rs. 125 lakhs. Which of the following CANNOT be true?

Accepted Answer

A. If 3 companies grew by 25% and 1 by 50%: Revenues in 2015 are P=150, Q=125, R=150, S=100. If P grew by 50%, P_2014 = 100, increase = 50. For Q, R, S: Q_2014=100 (inc 25), R_2014=120 (inc 30), S_2014=80 (inc 20). Increases are 50, 25, 30, 20 (all distinct). If R grew by 50%, increases are 30, 25, 50, 20 (all distinct). In both valid scenarios, all 4 absolute increases are distinct. Thus A CANNOT be true.

DI: Revenues of Four Companies (2015-2019)

Passage / data set

Question 1 of 3

Explanation

Question 2 of 3

Explanation

Question 3 of 3

Explanation

Practise this under exam conditions

Year	P	Q	R	S
2015	150	125	150	100
2016	175	140	160	120
2017	200	180	180	140
2018	250	210	200	170
2019	250	220	240	180