The hourly wages of a mason have increased by 25 Since the increase the number of hours he works dai...........

Quant (SSC) Time and work

The hourly wages of a mason have increased by 25%. Since the increase, the number of hours he works daily has reduced by 16%. If he was earning Rs. 120 per day before the increase, how much (in Rs.) is he earning now?

124.5

115.5

126

120

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Explanation:

Daily wages = hourly wages × work hours.
Let the original hourly wages and work hours be Rs. x and y hours respectively.
Since he used to earn Rs. 120 earlier, xy = 120
New hourly wages = Rs. (1.25x) and new working hours = 0.84y
∴ New daily wages = (1.25x)(0.84y)
= 1.05xy = 1.05 × 120 = Rs. 126