If the L.C.M. of two prime numbers x and y is 221, where x < y, then the value of 4y - 3x will be: (A) 13 (B) 1 (C) 29 (D) 39
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Step-by-step explanation:
lcm of prime number = product as no factor common ok?
221 = 13 x 17
therefore y = 17, x= 13
68-39 = 29
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