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Mathematics
11th
grade
Solving Real-life Problem involving Rational Function
5 questions
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- 1. Multiple Choice
Maryjoy can bake a cake in 2 hours. Clarissa can do it in 4 hours. How long will it take them to bake a cake if they joined together?
2 hours
1 1/3 hours
1 1/6 hours
5/3 hours
- 2. Multiple Choice
James and Tony play billiard every weekend. So far, James has won 8 out of 14 matches. How many matches will James have to win in a row to improve his winning percentage to 80%?
16
15
14
12
- 3. Multiple Choice
Sterling Silver is 92.5% pure silver. How many grams of Sterling Silver must be mixed to a 90% Silver alloy to obtain a 500g of a 91% Silver alloy?
200 grams
400 grams
300 grams
100 grams
- 4. Multiple Choice
Seven divided by the sum of a number and two is equal to half the difference of the number and three. Find all such numbers.
-5 and 4
10 and -2
5 and -4
-10 and 2
- 5. Multiple Choice
Yen-yen got an average grade of 91 on her 4 subjects. What must be her grade on the fifth subject to get an average of 92?
94
95
96
97
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