If 10112 x7 2510 solve for X - JAMB Mathematics 1998 Question
If 10112 + x7 = 2510, solve for X.
A
207
B
14
C
20
D
24
correct option: a
10112 + x7 = 2510 = 10112 = 1 x 23 + 0 x 22 + 1 x 21 + 1 x 2o
= 8 + 0 + 2 + 1
= 1110
x7 = 2510 - 1110
= 1410
\(\begin{array}{c|c}
7 & 14 \ 7 & 2 R 0 \ & 0 R 2
\end{array}\)
X = 207
= 8 + 0 + 2 + 1
= 1110
x7 = 2510 - 1110
= 1410
\(\begin{array}{c|c}
7 & 14 \ 7 & 2 R 0 \ & 0 R 2
\end{array}\)
X = 207
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