Suria Supermarket is organizing lucky draw contest. Those spending minimum of RM 50 at the supermarket are eligible to participate in the contest. The first and the second prizes are RM 1000 and RM 500 coupon voucher respectively, and 3 consolation prizes worth RM 100 each to be won. Each winner can only win one prize for the contest. What is the expected net earnings of a person who purchase RM 50 and join the contest at the supermarket?
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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