Let S = { a,b,c,d } and T = { 1,2,3,4,5,6,7 }. How many functions are there from S into T? explain your answer. Solution mappings from S to T since no of elements in S is 4 and no ofelements in T is 7 An element in S can be mapped in 7 possible ways so 4 elements can be mapped in 7*7*7*7 ways so in total 2401 ways.