If m,n and p are positive integers with m+n+p11=317, what is the value of n?
A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.
Solution
Since p is a positive integer, then p≥1 and so 0<p1≤1. Since n is a positive integer, then n≥1 and so n+p1>1, which tells us that 0<n+p11<1. Therefore, m<m+n+p11<m+1. Since m+n+p11=317, which is between 5 and 6, and since m is an integer, then m=5. Since m=5, then m+n+p11=317 gives n+p11=32 or n+p1=23. Since n<n+p1≤n+1 and n is an integer, then n=1. Thus, n+p1=23 gives p1=21, which gives p=2. Therefore, n=1.
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