If 2003rd root of B = 2003 , and the units digit of B is C , then C is

1.	If 2003rd root of B = 2003 , and the units digit of B is C , then C is :- a) 3 b) 9 c) 7 d) 1 Please provide explanation and no spams, please .....
Answer» Answer: (1) B is 25% greater than a --> b=1.25a --> b/a = 5/4 --> b is a multiple of 5. So, the units digit of b could be 0 as well as 5. Not SUFFICIENT. (2) If b is decreased by 50%, the result is not an integer --> b/2 is not an integer --> b is not even. Not sufficient. (1)+(2) Since b is not even, then its units digit cannot be 0, THUS from (1) its units digit must be 5. Sufficient. Answer: C. Step-by-step explanation: please mark as brainlist answer and follow me

If 2003rd root of B = 2003 , and the units digit of B is C , then C is :- a) 3 b) 9 c) 7 d) 1 Please provide explanation and no spams, please .....

Answer»

Answer:

(1) B is 25% greater than a --> b=1.25a --> b/a = 5/4 --> b is a multiple of 5. So, the units digit of b could be 0 as well as 5. Not SUFFICIENT.

(2) If b is decreased by 50%, the result is not an integer --> b/2 is not an integer --> b is not even. Not sufficient.

(1)+(2) Since b is not even, then its units digit cannot be 0, THUS from (1) its units digit must be 5. Sufficient.

Answer: C.

Step-by-step explanation:

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