A cargo ship carrying four kinds of items, doohickies, geegaws, widgets, and yamyams, arrives at the...
A cargo ship carrying four kinds of items, doohickies, geegaws, widgets, and yamyams, arrives at the port. Each item weighs 2, 11, 5, and 7 pounds, respectively, and each item is weighed as it is unloaded. If, in the middle of the unloading process, the product of the individual weights of the unloaded items equals 1,043,504,000 pounds, how many widgets have been unloaded?
Answer/Solution
3
Steps/Work
We need to know the number of widgets (which weigh 5 pounds each). The number of times that 5 divides the number is related to the number of times that 10 divides the number.
When we divide 1,043,504,000 by 1000, we get 1,043,504,000 = 1,043,504 * 5^3 *2^3.
1,043,504 is not divisible by 5, thus there are 3 widgets.
The answer is B.
When we divide 1,043,504,000 by 1000, we get 1,043,504,000 = 1,043,504 * 5^3 *2^3.
1,043,504 is not divisible by 5, thus there are 3 widgets.
The answer is B.