KS2 Primary Maths Age 9-13 - Problem: - Explained

The video tutorial explains how to solve a problem involving calculating the time it takes for a different number of men to build a wall at the same speed. Initially, it takes four men six days to build the wall. The tutorial guides through the process of determining how long it would take one man, and subsequently three men, to complete the same task. The solution involves understanding the relationship between the number of workers and the time taken, leading to the conclusion that three men would take eight days. The tutorial also highlights the importance of each step in the calculation for scoring marks.

If four men can build a wall in six days, how many days would it take for one man to complete the same task?

• 18 days

• 6 days

• 24 days

• 12 days

What is the first step in solving how long it takes three men to build the wall?

• Calculate the time for one man

• Calculate the time for two men

• Calculate the time for five men

• Calculate the time for four men

How many days will it take for three men to build the wall if one man takes 24 days?

• 12 days

• 8 days

• 6 days

• 10 days

What is the final answer for the time it takes three men to build the wall?

• 12 days

• 10 days

• 8 days

• 6 days

Which calculation is crucial for determining the time for three men?

• 24 / 3

• 24 / 5

• 24 / 4

• 24 / 2