2007
Mathematics
67ca00ce0c643c71d77dee1f
If x10 = 12145 find x
A.
124
B.
121
C.
184
D.
180
Correct Answer: 184
Explanation
x10 = 12145 = x x10 = 1 x 53 + 2 x 52 + 1 * 51 + 4 x 50 = 1 x 125 + 2 x 25 + 1 x 5 + 4 x 1 = 125 + 50 + 5 + 4 = 184
x10 = 12145 = x x10 = 1 x 53 + 2 x 52 + 1 * 51 + 4 x 50 = 1 x 125 + 2 x 25 + 1 x 5 + 4 x 1 = 125 + 50 + 5 + 4 = 184THIS WEEK's
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