The remainder 3

The remainder is 31 when dividing a number by 45. What would the remainder be if the same number were divided by 15?

Correct answer:

r2 =  1

Step-by-step explanation:

r1=31  X = 45q1 + r1  X = 15q2 + r2  31 = 15 2+1 = 15 2 + r2  q2 = 1545 q1+2 = 3 q1+2  31 = 15 2+1  r2=1



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