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Question

Given-
M N P
x P N
S Q N
N Q Q P x
N P M A N
What is the possible value of P ?

A
1
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B
5
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C
6
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D
Cannot be determined.
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Solution

The correct option is C 6
From the second row of multiplication, we can conclude: P × P = P (in units place). So, P can be either 1 or 6 ( because 1 × 1 = 1 and 6× 6 = 36 )...........................(I)
From the first row of multiplication, we can conclude: N × P = N (units place)
From the second row of multiplication, we can conclude: P × N gives Q in units place there must be carry over generated in the previous multiplication, which is P × P......................(II)
From (I) and (II), P is 6

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