Calculate 243six – 243five expressing your answer in base 10.

Assessment: JAMB UTME - Mathematics - 2018 Subject: General Mathematics

Question 1 Report

Calculate 243six – 243five expressing your answer in base 10.

Answer Details
Since they are of different base, convert to base 10
243 s i x  = (2 x 62) + (4 x 61) + (3 x 60)
= 72 + 24 + 3 = 99 base 10
243 s i x  = 2 x 52 + 4 x 51 +3 x 50
50 + 20 + 3 = 73 base 10
Subtracting them, 99 - 73
= 26

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