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Question

The difference between two angles is 190 and their sum is 8909 grades. Find the greater angle.
[Grade=1100 part of rt. angle=(90100)0=0.90]

A
630
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B
350
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C
270
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D
540
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Solution

The correct option is D 540
Let x be the greater angle
Let y be the smaller angle
Applying conditions, we get
x+y=8909(0.90)
x+y=890 ...(i)
xy=190 ...(ii)
Adding equation (i) and (ii), we get
2x=1080
x=540
Hence, the greater angle is 540
Therefore, the answer is option D.

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