ExxonMobil Test ExxonMobil Numerical Reasoning 2 — Questions and Answers
Question 1: Production data shows outputs of 320, 345, 310, 355, and 330 units over five days. What is the average daily output?
- 330
- 332 (Correct answer)
- 334
- 336
Correct answer: 332
(320+345+310+355+330) ÷ 5 = 1,660 ÷ 5 = 332 units.
Question 2: If crude oil costs $72 per barrel and a refinery needs 15,000 barrels, what is the total cost?
- $1,050,000
- $1,080,000 (Correct answer)
- $1,100,000
- $1,125,000
Correct answer: $1,080,000
72 × 15,000 = $1,080,000.
Question 3: A plant's efficiency drops from 94% to 87%. What is the percentage-point decrease?
- 5 points
- 6 points
- 7 points (Correct answer)
- 8 points
Correct answer: 7 points
94 − 87 = 7 percentage points.
Question 4: A pipe can fill a storage tank in 4 hours and another pipe can drain it in 6 hours. If both are open, how long to fill the tank from empty?
- 10 hours
- 12 hours (Correct answer)
- 14 hours
- 16 hours
Correct answer: 12 hours
Net fill rate = 1/4 − 1/6 = 3/12 − 2/12 = 1/12 per hour, so it takes 12 hours.
Question 5: An ExxonMobil facility uses 4,500 kWh of electricity per day at $0.08 per kWh. What is the monthly electricity bill (30 days)?
- $10,200
- $10,400
- $10,600
- $10,800 (Correct answer)
Correct answer: $10,800
4,500 × 0.08 × 30 = $10,800.
Question 6: A ratio of lubricant to solvent is 3:7. If 210 liters of solvent is used, how much lubricant is needed?
- 70 liters
- 80 liters
- 90 liters (Correct answer)
- 100 liters
Correct answer: 90 liters
If 7 parts = 210 liters, 1 part = 30 liters; 3 parts = 90 liters.
ExxonMobil Test ExxonMobil Numerical Reasoning 2
Production data shows outputs of 320, 345, 310, 355, and 330 units over five days.
What is the average daily output?