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Question

Find x and y
1711+xy = 2511

A
811
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B
511
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C
711
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D
911
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Solution

The correct option is A 811

Given,
1711+xy = 2511

xy=25111711

As the fractions on RHS are like fractions, we can subtract the numerators directly and denomiantors remain the same.

xy=251711

xy=811

Hence, on comparison
25111711=xy=811

x=8
y=11

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