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ATQ, Let the price of phone ‘P’, ‘Q’ and ‘R’ be Rs. ‘p’, Rs. ‘q’ and Rs. ‘r’, respectively. p + q = 31,200 q + r = 33,600 r + p = 32,400 So, 2(p + q + r) = 97,200 Or, p + q + r = 48,600 So, price of phone ‘r’ = 48,600 – 31,200 = Rs. 17,400
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