Question

There are 21 jars of peanut butter for sandwiches. Each sandwich uses 1/5 of a peanut butter jar. How many sandwiches can be made from all the peanut butter?

Answer 1

Answer: 105 sandwiches can be made from all the peanut butter.

Step-by-step explanation:

Given: Total jars of peanut butter = 21

Part of peanut butter required for each sandwich = $\dfrac15$

Total number of sandwiches made = ( Total jars of peanut butter ) ÷ (Part of peanut butter required for each sandwich)

$=21\div\dfrac15\\\\=21\times5\\\\=105$

Hence, 105 sandwiches can be made from all the peanut butter.