The sum of weights of Raju and Anu is 85 Kg.If half the weight of Raju is equal to 4 by 9th of the weight of Anu ,determine the weights of Raju and Anu.
Class 10 question please help me fast......
harvi99:
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Answers
Answered by
1
Explanation is as follows:
Let Raju's weight be x Kg.
So Anu' s weight be (85-x) Kg.
According to the question,
1/2 × x = (4/9) × 85-x
x/2 = (340-4x) / 9
On solving till last, we get.
9x = 2(340-4x)
9x = 680 - 8x
9x+8x = 680
17x = 680
x = 680/17
x = 40
x= 40
85-x = 85-40 = 45
Therefore, Raju's age is 40 years and Anu' s age is 45 years.
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LetRaju'sweightbexKg.
SoAnu' sweightbe(85-x)Kg.
Accordingtothequestion,
1/2×x=(4/9)×85-x
x/2 = (340-4x) / 9
Onsolvingtilllast,weget.
9x = 680 - 8x
9x + 8x = 680
17x = 680
x = 680/17
x = 40
Therefore,Raju'sageis62andAnu' sageis23.
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Answered by
0
Answer:
Step-by-step explanation:
so sum of raju and anu be x+y = 85
1/2x = 4/9y
x=4/9 x 2/1 y
x= 8/9y
8/9y+y =85
2y = 85 x 9/8
2y= 95.625
y = 95.625/2
y = 47.8125
x =37.1875
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