A major airplane manufacturer announced the sale of 150 small airliners at $125 million each, 75 ...

A major airplane manufacturer announced the sale of 150 small airliners at $125 million each, 75 medium sized airliners at $175 million each, and 60 large airliners at $220 million each. What percentage of the company's income came from large and medium airliners?

Quiz

Answer/Solution

58%

Steps/Work

Answer is (money from mid and large plane)/(total money from all the planes)x 100
=(175∗75+220∗60)/(125∗150+175∗75+220∗60)∗100(175∗75+220∗60)/(125∗150+175∗75+220∗60)∗100
= 58.4%
you could just multiply add divide to get answer.
However sometimes its much better to make it easy we should see if we have any common terms
125*150=(5*5*5)*(2*3*5*5)
175*75=(5*5*7)*(3*5*5)
220*60=(2*2*11*5)*(2*2*3*5)
3*5*5 is common cancel it
Ans becomes
(175+176)/(176+175+250)*100 =~=~ 350/600*100=~=~7/12*100=60% >>> 58% is closest.
ANSWER:C

Gain Calculator / Auto Solver

A major airplane manufacturer announced the sale of small airliners at $ million each, medium sized airliners at $ million each, and large airliners at $ million each. What percentage of the company's income came from large and medium airliners?

Calculated Answer

58.402662229617

Step by Step Solution

In order to solve problem, you must evaluate (n2 * n3 + n4 * n5) / (n2 * n3 + n4 * n5 + n0 * n1) * 100.

n0 =150
n1 =125
n2 =75
n3 =175
n4 =60
n5 =220