To calculate the percentage of the lesson time used for setting up:
Total lesson time = 60 minutes
Time used for setting up = 9 minutes
Percentage of lesson time used for setting up = (9/60) x 100% = 15%
Therefore, 15% of the physics class lesson time was used for setting up.
To calculate the total cost of the cloth:
Cost per meter = x₦
Length of cloth purchased = 5 meters
Total cost of the cloth = 5 * x₦
If the total cost is ₦7000, then we can set up an equation:
5 * x = 7000
x = 7000 / 5
x = 1400₦ per meter
Therefore, the cost per meter is 1400₦. When you buy 5 meters of cloth at 1400₦ per meter, the total cost is 5 * 1400 = 7000₦.
Since you are paying the exact amount and not more, you will not receive any change.
During a physics class lesson lasting one hour it took 9 mins to set up what is the percentage of the lesson time was used
If I buy 5 metres of a cloth at x₦ per meter how much change will I get from ₦7000
1 answer
4 answers