Question
In a party, the ratio between number of present male and
number of present female is 6:5 respectively. After 3 hours, 30 males join the party and 5 women leave the party. If the final ratio between male to female is 12:7, then find the total number of people initially present in the party.Solution
Let the number of male and female present in the party initially be 6x and 5x respectively.
ATQ,
(6x + 30) /(5x - 5) = (12/7)
Or, 7 X (6x + 30) = 12 X (5x - 5)
So, 42x + 210 = 60x - 60
So, 270 = 18x
So, 'x' = 15
So, required number of people = 6x + 5x = 11 X 15 = 165
51, 60, 78, ?, 141, 186
14, 20, 29, 44, 65, ?
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
Find the missing number, in the given number series.
6, 12, 36, ?, 720, 4320
What will come in place of the question mark (?) in the following series?
2, 5, 10, 17, 26, ?, 5094Â Â Â 115Â Â Â 138Â Â Â 163Â Â Â Â 190Â Â Â Â ?
What will come in place of the question mark (?) in the following series?
206, 187, ?, 157, 146, 139
38, 41, 50, ?, 158, 401Â
63 131 267 ? 1083 2171
5 6 15 40 89 170 ?
...
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