Question
The average weight of x persons
is 33 kg. The average weight of (x−16) women is 45 kg, the average weight of (x−30) children is 40 kg, and the average weight of (x−35) men is 40 kg. Find the value of x, given that the total number of persons is the sum of men, women, and children.Solution
ATQ, Total weight of x persons = 35 × x = 35x kg Total weight of (x - 16) women = 45 × (x -16) = 45x - 720 kg Total weight of (x - 30) children = 40 × (x - 30) = 40x - 1200 kg Total weight of (x - 33) men = 40 × (x - 33) = 40x - 1320 kg According to the question, 35x = 45x - 720 + 40x - 1200 + 40x - 1320 35x = 125x - 3240 90x = 3240 x = 36
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 10, 6, 964
Second row: 7, 3... Find the missing number.
20, 30, 42, 56, 72, ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it. Â
First row: 4, 6, 18
Second row: 7...
Select the option that is related to the third term in the same way as the second term is related to the first term and sixth term is related to fifth ...
Select the number from among the given options that can replace the question mark (?) in the following table.
Find the missing letter.
In the following expression find the missing term:Â Â
Find the missing number from the given responses.
3 Â Â Â 5 Â Â Â 7
4 Â Â Â 6 Â Â Â 8
5 Â Â Â 7 Â Â Â 9
26...
Select the number from the given option that can replace the question mark (?) in the following series:
32, 16, 24, 60, ?, 945
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