Question
The mean weight of 24 men is 45
kg, while the mean weight of 18 women is 40 kg. Calculate the combined average weight of all the men and women together, rounding the result to two decimal places.Solution
ATQ, Sum of weights of each men = 24 × 45 = 1,080 kg Sum of weights of each women = 18 × 40 = 720 kg Required average weight = (1,080 + 720) ÷ (24 + 18) = (1,800/42) ~ 42.86 kg
78, 80, 84, ?, 108, 140
What will come in place of the question mark (?) in the following series?
102, 111, 136, 185, 266, ?
38% of 18/225 of 31/19 of 15225 =?
What will come in place of the question mark (?) in the following series?
60, 94, 184, 464, 1388, ?
What will come in place of the question mark (?) in the following series?
4, 3, 7, 26, 101, ?
What will come in place of the question mark (?) in the following series?
32, ?, 30, 46, 28, 44
126 56 ? 12 10 2
...76, 80, 89, 105, ?, 166
Find the missing number in the given number series.
2, 5, 11, 23, 47, ?8, 12, 16, 22, ?, 64
