It could be a building with a triangular top. If the building had a triangular top, then it must have 3 rectangles as its sides. So your answer would be, a building with a triangular top.
Answer:
Correct option is
C
5/2
Total no. of numbers=15
No. of prime numbers between 1 to 15=6(2,3,5,7,11,13)
Probability = 15
6 = 52
D. 50 mph
Going upstream takes longer because of the flow of the water
4, 2, 1, 3
we cannot use 2 before having another triangle, so 4 must be before 2
we can use 1, but it will be just a restatement of the given information is not done before 4 and 2
3 is the final goal, which is always the last step