1. A contractor has a job which should be completed in 100 days, at present he has 80 men on the job and it is estimated that they will finish the work in 130 days, if of the 80 men, 50 are paid ₱400/day, 25 at ₱500/day, and 5 at ₱600/day, and if for each day beyond the original 100 days, the contractor has to pay ₱10,000 in liquidated damages. a. How many men should the contractor add so he can complete the work on time? b. If all the additional men will be paid P600/day, how much will be the total salary expenses to finish the job in 100 days? c. Would the contractor save money by employing more men and not paying the fine?
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.
1. A contractor has a job which should be completed in 100 days, at present he has 80 men on the job and it is estimated that they will finish the work in 130 days, if of the 80 men, 50 are paid ₱400/day, 25 at ₱500/day, and 5 at ₱600/day, and if for each day beyond the original 100 days, the contractor has to pay ₱10,000 in liquidated damages.
a. How many men should the contractor add so he can complete the work on time?
b. If all the additional men will be paid P600/day, how much will be the total salary expenses to finish the job in 100 days?
c. Would the contractor save money by employing more men and not paying the fine?
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