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When 40 % is added to 42, the result is number itself. the number is:

Category : Quantitative Sciences | Answer: 1 2 Years Ago

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42 + 40 % 0f X = X

42 +40/100 X = X

42 = X -4/10X

42 = 10X -4X /10

X = 420/6

=70

2 Years Ago
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