A number theory problem by Favour A=Futbol4life

Number Theory Level 1

Today is Saturday. What day of the week will it be in 900 days

Saturday Sunday Thursday Monday Friday Tuesday Wednesday

Favour A=Futbol4life by Favour A=Futbol4life , 18, USA

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1 solution

Pham Khanh
Apr 16, 2016

We have: 900 = 128 ∗ 7 + 4 900=128*7+4 so after 128 128 weeks, it is still Saturday but there are still 4 more day till 900 900 days so after 4 days, it is W e d n e s d a y \boxed{\mathrm{Wednesday}}

0 Helpful 0 Interesting 0 Brilliant 0 Confused

That is a brilliant solution, Pham.

Favour A=Futbol4life - 5 years, 2 months ago

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