14 下列何項相當於十進制的 24?
(A)(00011000)2
(B)(02220)4
(C)(31)8
(D)(1A)16
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統計: A(523), B(29), C(28), D(12), E(0) #3274415
統計: A(523), B(29), C(28), D(12), E(0) #3274415
詳解 (共 3 筆)
#6180240
(A)(00011000)2 = 1×24 + 1×23= 16 + 8 = (24)10
(B)(02220)4 = 2×43 + 2×42 + 2×41 = 128 + 32 + 8 = (168)10
(C)(31)8 = 3×81+ 1×80 = 24 + 1 = (25)10
(D)(1A)16 = 1×161 + 10×160= 16 + 10 = (26)10
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#6417867
(A)(00011000)2=0×20+0×21+0×22+1×23+1×24 =0+0+0+8+16=24
(B)(02220)4=0×40+2×41+2×42+2×43=0+8+32+128=168
(C)(31)8=1×80+3×81=1+24=25
(D)(1A)16=10×160+1×161=10+16=26
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