The sum of digits of a two digit number is 8 if the digits are reversed the number is decreased by 54 the number is
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Answer:
Step-by-step explanation:
→ Let the units number be u; the tens be t.
- t+u=8
- 10u+t=10t+u+54
- u=8-t
-
→ 10(8-t)+t=10t+8-t+54
→ 80-10t+t=9t+62
→ 80-9t=9t+62
→ 18t=18
→ t=1
→ u=7
⇒ The number is 17.
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