The correct option is A A chocolate bar of length 7cm is cut into smaller equal pieces of 15cm. How many pieces of chocolate are there?
Option A:
15 cup of sugar is required for 7 servings of smoothie. How many cups of sugar are required for each serving?
Number of servings =7
Amount of sugar required for 7 servings of smoothie =15 cup
Number of cups of sugar required for each serving = Amount of sugar required for 7 servings of smoothie ÷ Number of servings
=15÷7
So, this expression matches the given expression.
Option B:
15 part of a chocolate is required for 7 glasses of chocolate milkshake. How much chocolate will each glass of milkshake need?
Number of glasses =7
Chocolate required for 7 glasses =15
Chocolate require for one glass = Amount of chocolate require for 7 glasses ÷ Number of glasses
=15÷7
So, the expression matches the given expression.
Option C:
A chocolate bar of length 7cm is cut into smaller pieces of 15cm each. How many pieces of chocolate are there?
Total length of the chocolate bar =7cm
Length of each small piece =15 cm
Number of pieces = Total length of chocolate ÷ length of each piece
=7÷15cm
So, the expression does not match the given expression.
Option D:
15 m of a wooden sheet is required to make 7 planks. How much sheet is required for one plank?
Number of planks =7
Length of wooden sheet =15 m
Sheet required for one plank = Required length of the wooden sheet to make 7 planks ÷ Number of planks
=15÷7
So, the expression matches the given expression.
Hence, only Option C is correct