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The sum of three numbers is 98. Of the ratio between |
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Answer» Answer: The sum of three numbers is 98.The RATIO of the first to the second is 2/3,and the ratio of the second to third is 5/8.The second number is :a)15 b)20C)30 d)32e)33 Explanation: Let the first number be =X1 and the second number be=X2 and the third number be =X3 given that =X1/X2=2/3 given that=X2/X3 =5/8 So,X1+X2+X3 =98..... consider X1/X2=2/3 So,X1=2/3 X2.... consider X2/X3 = 5/8 write as 8X2 = 5X3 So,X3 =8/5 X2 .... If we SUBSTITUTE 3,2,1 X1+X2+X3 2/3X2+X2+5/8X2 =98 X2 =(10+1+22 /15 ) =98 X2 = 30 |
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