19. If x: y = 3:4, the value of x²y + xy2 : x3 + y3 is
(a) 13:12
(b) 12:13
(C) 21:31
(d) none of these
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Answered by
7
(b) 12:13 is the correct answer
rshakthisp23:
please tell the method .
Answered by
24
hope it helps..........
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