Two numbers are in the ratio 3:5, if 9 is subtracted from each, the new numbers are in the ratio 12:23. The product of the two numbers is:
A.1875
B.33396
C.1815
D.33296
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Answer:
3x-9/5x-9= 12/23
23(3x-9) = 12(5x-9)
69x - 60x = 207-108
9x=99
x=11
1st number = 3x = 3(11) = 33
2nd number = 5x = 5(11) = 55
product of the two numbers = 33×55 = 1815
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