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A person can only move upwards or towards right. In how many ways can he travel from A to C via B
A Person Can Only Move Upwards Or Towards Right. In How Many...
Options:
A .  330
B .  60
C .  55
D .  150
Answer: Option D
:
D
This question can be visualized as a similar to different question in P&C (refer e booklet for indepth explanation of concept)
Number of columns from A to B= 3 and rows= 2. Answer is based on 3 zeros and 2 ones =5C2=10 ways.
Similarly, number of columns from B to C= 4 and number of rows= 2. Answer is based on 4 zeroes and 2 ones= 6C4 =15. Total number of ways = 15×10=150. Option (d)

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