One is $48
The other is $24
You paid 75% for both pairs combined
Answer:
1) 133⅓ %
2) 112½ %
Step-by-step explanation:
1) 2 years = 2×12 = 24 months
24/18 × 100 = 133.33%
2) 225mm = 225/10 = 22.5 cm
22.5/20 × 100 = 112.5%
If the coins are selected without replacement, the probability of 2 dimes is:

The answer is 5/14.
Using the formula for a hypergeometric distribution, we get: