Practicing Success
The average temperature from Mon to Wed is 37°C while the average temperature from Tue to Thu is 34°C. The temperature of Thurs is \(\frac{4 }{5}\) times that of Mon. Find the temperature of Thursday. |
32°C 35°C 36°C 33°C |
32°C |
\(\frac{Mon + Tue + Wed}{3}\) = 37 Mon + Tue + Wed = 37 × 3 = 111 ------(i) \(\frac{Tue + Wed + Thu}{3}\) = 34 Tue + Wed + Thur = 34 × 3 = 102 ------(ii)
Subtract eqn (ii) from (i), we get Mon - Thu = 9 ---------- (iii) ATQ, Thu = \(\frac{4}{5}\) Mon (Put this value in eqn (iii)) Mon - \(\frac{4}{5}\) Mon = 9 Mon = 45 Thu = 45 x \(\frac{4}{5}\) = 36° C |