In a bag of oranges, the ratio of the good ones to the bad ones is 5:4. If the number of bad oranges in the bag is 36, how many oranges are there in the altogether?
A
81
B
72
C
54
D
45
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Ratio of good ones to bad ones is 5:4; If 36 is bad;
∴ the good ones = \(\frac{5\times 36}{4}=45\) oranges.
The total number of oranges is 36 + 45 = 81.
Source: Myschool Past Questions Archive (Record #26478)