Question: Kate has a coin collection. She keeps 7 of the coins in a box, which is only 5 \% of her entire collection. What is the total number of coins in Kate's coin collection?
A) 12
B) 14
C) 120
D) 140
Correct answer: D
Grade: 6 | Topic: Ratios and proportions | Difficulty: Medium | Standard: 6.RP.A.3