Answer: $0.07
Step-by-step explanation:
The Cost of pencil ordered = $0.21
= 21cents
The original price of each pencil was 6 cents. Since the price has risen, we need to know the current price.
3 an 7 are factors of 21 and prime numbers
21 = 3*7
Since the current price is greater than 6 cents because of the increase in price, the current price is therefore $0.07 each.
To find the number of pencils that was ordered, divide 0.21 by 0.07
= 0.21/0.07
= 3 pencils
The group bought 3 pencils