Question
Five teachers, L, M, N, O and P, are sitting in a
straight line facing towards north. P is between L and O. N is second to the right of O. L is to the immediate left of P. Who is sitting to the immediate left of M?Solution
LÂ Â Â Â Â Â Â Â Â PÂ Â Â Â Â Â Â Â OÂ Â Â Â Â Â Â Â MÂ Â Â Â Â Â Â Â N
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The mean proportion of 289 and 144 is:
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