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EduGorilla
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Direction: The question given below has few statements along with it. You have to determine which of the statement/s is/are sufficient/necessary for answering the question and mark your answer accordingly.

Find X, when a man travelling M km on foot travels at S1 km per hour while remaining distance of N km using a car at speed S2 km per hour such that the average speed, over the 1st half distance of the total journey, is equal to X km/min.
a : S1 = 4.8km/hr, S2 = 144km/hr, M = 1.2km, n = 48km
b : S1 : S2 = 1 : 30, M : N = 1 : 40

### Options :-

1. Only a
2. Only b
3. Both a & b
4. Either a or b
5. Neither a nor b
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