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.

Question: Find the greatest number which on dividing 1255 and 1490, leaves a reminder of 8 and 11 respectively

 Option A: 27

 Option B: 29

 Option C: 33

 Option D: 39

 Option E: 41
Option B

Question: The parameter of a square is double the perimeter of a rectangle. The area of the rectangle is 480 sq cm. Find the area of the square?

 Option A: 482

 Option B: 268

 Option C: 260

 Option D: 480

 Option E: 632
Option D

Question: Two pipes A and B can fill a tank in 6 hours and 4 hours respectively. If they are opened on alternate hours and if pipe A is opened first, in how many hours, the tank shall be full ?

 Option A: 4 hrs

 Option B: 5 hrs

 Option C: 7 hrs

 Option D: 9 hrs

 Option E: 8 hrs

Option B