ExxonMobil Test Numerical Reasoning 3

Question 1

A refinery's output drops by 20% due to maintenance, then recovers by 25% of the reduced output. What is the net change relative to original output?

Accepted Answer

-5%

Answer

0.80 × 1.25 = 1.00 − but correct: 0.80 × 1.25 = 1.00; re-check: net is 0% — wait: the answer is 0% net change since 80% × 125% = 100%; however if the question says 'recovers by 25%' meaning original, it's +5%. The standard interpretation: 80% × 1.25 = 100%, net change = 0%; closest answer listing is −5%... The net after 20% drop then 25% gain = 80% × 1.25 = 100%, so net = 0%.

Question 2

If ExxonMobil allocates 35% of a $4.2 billion budget to exploration, how much is allocated to exploration?

Accepted Answer

$1.47 billion

Answer

0.35 × $4.2B = $1.47 billion.

Question 3

A tank drains at 750 gallons per hour. If it starts at 18,000 gallons, how long before it is 25% full?

Accepted Answer

18 hours

Answer

25% of 18,000 = 4,500; gallons to drain = 13,500; 13,500 ÷ 750 = 18 hours.

Question 4

Three crews produce 540, 720, and 660 units respectively in one shift. What is the median output?

Accepted Answer

660 units

Answer

Ordered: 540, 660, 720 — the middle value is 660 units.

Question 5

An offshore platform cost $2.4 billion to build and generates $380 million profit per year. How many full years to recoup the cost?

Accepted Answer

7 years

Answer

2,400 ÷ 380 ≈ 6.32, so 7 full years are needed to fully recoup.

ExxonMobil Test Practice Test

ExxonMobil Test Practice Test

ExxonMobil Test Numerical Reasoning 3