When 15 is divided by integer u, the remainder is 4. For how many values of u is this be true?	Choose one:
A) 1	B) 2	C) 3	D) 4	E) 5

Rationale: when 15 is divided by u , the remainder is 4 i . e . 4 mangoes left over after grouping , so u must be greater than 4 . it also means that 11 is completely divisible by u . factors of 11 are 1 and 11 . out of these , u could be 11 . answer ( a )
Answer: A