Sailors Flo and Jet are at sea with enough food to last for 30 days together. If Flo were alone, the food would last 50 days. If Jet were alone, the food would last? days.
A.
10
B.
40
C.
70
D.
75
Exam No：2020 First Round Grade 7 Year：2020 Question No：22
Answer:
D
Knowledge points:
G7 - Algebra - Rate Problems (Work-Rate)
Solution:
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