two numbers are in ratio 8:13 if 14 is added to each nunber the ratio becames 2:3 find the number
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Let the two numbers be 8x and 13x . When 14 is added to these numbers the ratio becomes 2 : 3 . The numbers are 56 and 91 .
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two numbers are 56 and 91
Step-by-step explanation:
let the numbers are x and y
given,
x : y =8 : 13
=> x/y =8/13
=> x=8y/13
again,
(x+14) : (y+14)=2 :3
=>(x+14)/(y+14)=2/3
=> 3(x+14)=2(y+14)
=> 3x+42=2y+28
=> 3x=2y+28-42=2y-14
=> x=(2y-14)/3
so,
8y/13= (2y-14)/3
=> 8y.3=13(2y-14)
=> 24y=26y-182
=. > 24y-26y= -182
=> -2y= -182
=> y= -182/-2=91
x=8y/13=8*91/13=8*7=56
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