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Question
When Sunita weighed herself on Monday, she found that she had gained `1 1/4` 5 kg. Earlier her weight was `46 3/8` kg. What was her weight on Monday?
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Solution
Sunita had gained = `1 1/4` kg = `5/4` kg
Earlier her weight was `46 3/8` kg = `371/8` kg
∴ Her total weight on Monday = `371/8` kg + `5/4` kg
= `371/8` kg + `(5 xx 2)/(4 xx 2)` kg ...[∵ L.C.M. of 8 and 4 is 8]
= `371/8` kg + `10/8` kg
= `((371 + 10))/8` kg
= `381/8` kg
= `47 5/8` kg
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