Question
The average temperature for a week is recorded as
35.4°C. The difference between the highest and lowest temperatures during the week is 30°C. Additionally, the average temperature of the remaining five days (excluding the hottest and coolest days) is 34.76°C. Determine the temperature of the hottest day of the week.Solution
Let the temperature of the hottest and the coolest day of the week be 'ao C and 'bo C, respectively. Sum of the temperatures of the week = 35.4oC X 7 = 247.8 o C Sum of the temperatures of other five days of the week = 34.76o C X 5 = 173.8o C So, the sum of the temperature of the hottest and the coolest day of the week = 247.8 - 173.8 = 74o C So, (a + b) = 74o C..........(I) Or, (a - b) = 30o C.............(II) On adding both the equations, we get, Or, 2a = (104/2) = 52o C
12.5% of (100 + ?) = 40
2/9 of 5/8 of 3/25 of ? = 40
24 × √? + 4008 ÷ 24 = 40% of 200 + 327
7(1/2) – 3(5/6) = ? − 2(7/12)
280 ÷ 14 + 11 × 12 – 15 × 6 = ?
1550 ÷ 62 + 54.6 x 36 = (? x 10) + (28.5 x 40)
25% of 1000 + 10% of 150 – 22 × ? = 45
√ 729 × 5 – 220 % of 15 + ? = 120% of 160
What will come in the place of question mark (?) in the given expression?
(40% of ? × 43 ) – 232 = 751
180 % of 45 + √144 × 8 = ?2 + 80 % of 70
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