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1
What is 15 + 7?
A.19
B.21
C.22
D.24
Explanation: 15 + 7 = 22.
2
A train travels 250 km in 5 hours. What is its average speed?
A.45 km/h
B.50 km/h
C.55 km/h
D.60 km/h
3
Which country has the largest number of immigrants?
A.Germany
B.United States
C.Canada
D.United Kingdom
4
A 40-liter mixture has 25% alcohol. 8 liters is removed and replaced with alcohol (100%). What is the new alcohol percentage?
A.40%
B.42%
C.44%
D.46%
5
What is 30 + 6?
A.33
B.35
C.36
D.38
Explanation: 30 + 6 = 36.
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