In the summer of 2012, in New Delhi, the mean temperature of Monday to Wednesday was 41° C and of…
The correct choice is: “46” Mon + Tue + Wed = 3 × 41 = 123 and Tue + Wed + Thu = 3 × 43 = 129. Subtracting gives Thu − Mon = 6. Thu = 1.15 × Mon, so 1.15 Mon − Mon = 0.15…
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In the summer of 2012, in New Delhi, the mean temperature of Monday to Wednesday was 41° C and of Tuesday to Thursday was 43°C. If the temperature on Thursday was 15% higher than that of Monday, then the temperature in °C on Thursday was
Answer and explanation
Correct answer C
The correct choice is: “46”
Mon + Tue + Wed = 3 × 41 = 123 and Tue + Wed + Thu = 3 × 43 = 129. Subtracting gives Thu − Mon = 6.
Thu = 1.15 × Mon, so 1.15 Mon − Mon = 0.15 Mon = 6, which gives Mon = 40 °C and Thu = 40 + 6 = 46 °C (check: 1.15 × 40 = 46 ✓).
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