Mathematical Reasoning Flashcards

A meter reader has completed 75% of a 240-meter route. How many meters remain to be read?

Answer: 60

75% completed means 25% remaining; 25% of 240 = 0.25 × 240 = 60 meters left.

Three consecutive monthly gas readings are: 1,200 | 1,248 | 1,312. What was the consumption in the SECOND month?

Answer: 64 CCF

The second month's consumption is 1,312 − 1,248 = 64 CCF.

A billing period covers 32 days. A customer's average daily water use is 85 gallons. Approximately how many gallons did they use this billing period?

Answer: 2,720

32 days × 85 gallons/day = 2,720 gallons for the billing period.

A route has 180 meters split equally across 6 streets. How many meters are on each street?

Answer: 30

180 ÷ 6 = 30 meters per street when distributed equally.

A meter reader is paid $18.50 per hour and works 8 hours per day, 5 days per week. What are their total gross weekly earnings?

Answer: $740.00

$18.50/hour × 8 hours/day × 5 days/week = $740.00 gross weekly earnings.

Last month a customer used 450 kWh. This month usage increased by 20%. What is this month's usage?

Answer: 540 kWh

450 kWh × 1.20 = 540 kWh; a 20% increase adds 90 kWh (450 × 0.20 = 90) to the original 450.