Subject :Rea Class : Class 7
Study the given arrangement and answer the question that follows:
W ↑ 2 S I * N 1 L @ = B D 3 6 ∆ H J 9 # 7 P K $ V & 8 4 M
If the symbols and numbers are interchanged serially as they appear in the arrangement such as ↑ with 2, * with 1, @ with 3 and so on, then which element will be the 17th element to the right of the 20th element from the right end in the new arrangement?
(IMO 2014)
A8
B$
C4
D#
What do they mean, "symbols and numbers serially interchanged"? i dont understand someone explain this