3. a) A trader ordered x number of pen drives for GH¢48,000.00. She found that 40 of them were defective after taking deliveries of the items. She then sold all the remaining pen drives. The selling price of one pen drive was GH¢100.00 more than the cost price. Find in terms of x ; (i) the cost price of one pen drive (ii) the number of pen drives she sold (iii) the selling price of one pen drive (iv) an expression for the total sum that she received from the sale
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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