You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

[Q]: Question: In a queue that comprises of 7 students. Sam and Tom are in the queue, what is the probability that they will be standing next to each other in the queue?

 Option A:  7%

 Option B:  14%

 Option C:  21%

 Option D:  28%

 Option E:  35%
[A]: Option C


[Q]: Question: In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is
Rs. 30 in all, how many 5 p coins are there?

 Option A: 150

 Option B: 130

 Option C: 120

 Option D: 110

 Option E: 140
[A]: Option A


[Q]: Question: The average weight of 19 students is 15kg. by the admission of a new student the average weight is reduced to 14.4 kg. the weight of the new student is ?

 Option A: 10.6 kg

 Option B: 3 kg

 Option C: 11 kg

 Option D: 14.9 kg

 Option E: None
[A]:
Option B