Question

The letters L, M, N, O, P, Q, R, S and T in their order are substituted by nine intergers 1 to 9 but not in that order. 4 is assigned to P. The difference between P and T is 5. The difference between N and T is 3. What is the integer assigned to N ?

• A. 4
• B. 5
• C. 6
• D. 7

Answer 1

The correct option is C 6

P = 4 and T - P = 5 $\to$ T = 9.
T - N = 3 and T = 9 $\to$ N = 6.