Question

(1) The maximum daily temperature in a certain city was recorded for a week as given below. Find the average daily temperature for that week.

Mon	Tue	Wed	Thu	Fri	Sat	Sun
37.8	39.7	37.0	43.8	46.1	40.6	42.0

(2) The daily income of a family on five days was Rs 90, Rs 95, Rs 93, Rs 88 and Rs 79. What is the family's average daily income?

Answer 1

(1) Sum of all temperatures = (37.8 + 39.7 + 37.0 + 43.8 + 46.1 + 40.6 + 42.0 ) °C = 287°C
Total number of days = 7
Average daily temperature$=\frac{\mathrm{Sum}\mathrm{of}\mathrm{all}\mathrm{the}\mathrm{temperature}s}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{days}}$
= ${\left(\frac{287}{7}\right)}^{°}\mathrm{C}$
= 41°C

(2) Total income = 90 + 95 + 93 + 88 + 79 = 445
Total number of days = 5
Average daily income =$\frac{\mathrm{Total}\mathrm{income}}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{days}}$
= Rs$\frac{445}{5}$
= Rs 89