Question 1
Number BasesIf 10112 + X7 = 2510, solve for X
- A.14
- B.20
- C.24
- D.25
Show the answer and explanation
Answer: B (20)
Explanation
1011₂ = 8 + 2 + 1 = 11, so X₇ must equal 25 − 11 = 14 in base ten. 14 = 2 × 7 + 0, which is 20 in base 7.
If 10112 + X7 = 2510, solve for X
Answer: B (20)
1011₂ = 8 + 2 + 1 = 11, so X₇ must equal 25 − 11 = 14 in base ten. 14 = 2 × 7 + 0, which is 20 in base 7.