Numeracy Skills Flashcards

A recipe calls for 2¾ cups of flour. If you want to make 1.5 times the recipe, how many cups of flour do you need?

Answer: 4⅛ cups

2¾ = 2.75; 2.75 × 1.5 = 4.125, which equals 4⅛ cups.

What is 15% of 240?

Answer: 36

15% of 240 = 0.15 × 240 = 36.

A car travels 180 miles in 3 hours. At the same speed, how far will it travel in 5 hours?

Answer: 300 miles

Speed = 180 ÷ 3 = 60 mph; distance in 5 hours = 60 × 5 = 300 miles.

Which of the following fractions is equivalent to 0.625?

Answer: ⅝

0.625 = 625/1000 = 5/8.

A store marks up an item by 40% and then offers a 20% discount. What is the net percentage change from the original price?

Answer: 12% increase

1.40 × 0.80 = 1.12, so the final price is 12% above the original.

Round 4.7653 to the nearest hundredth.

Answer: 4.77

The digit in the thousandths place is 5, so round up the hundredths digit from 6 to 7, giving 4.77.

If 3 workers can complete a job in 12 days, how many days will it take 4 workers to complete the same job (assuming constant work rate)?

Answer: 9 days

Total work = 3 × 12 = 36 worker-days; 36 ÷ 4 = 9 days.