Question
A recent survey of married couples in Indian metro
cities showed that 20% of the couples have only one child, 45% of the remaining couples have two children, and the rest of the couples have three or more children. What is the percentage of couples with three or more children?Solution
Total number of couples = 100% So couples having only one child is 20% of 100% = 20/100 x 100 = 20 Remaining 100- 20 = 80 Now couples having two child is 45% of remaining, i.e. 80 x 45% = 80 x 45/100 = 36, Remaining left now = 80% - 36% = 44%.
4Â Â Â Â Â 6Â Â Â Â Â Â 12Â Â Â Â Â 30 Â Â Â Â Â Â 90 Â Â Â Â Â Â Â 310
...2592 1300 656 331 169.5 88.75
...- Find the wrong number in the given number series.
6, 12, 24, 50, 96, 192 112, 130, 155, 196, 254, 342
126Â Â Â Â Â 130 Â Â Â Â Â 114 Â Â Â Â Â Â 150Â Â Â Â Â 82 Â Â Â Â Â 186 Â Â Â Â Â 42
...66, 115, 34, 155, 14, 211
Find the wrong number in the given number series.
- 342, - 218, - 96, 27, 150, 273
420, 380, 340, 300, 280, 220, 180
Find the wrong number, in the given number series,
1680, 840, 2520, 630, 3150, 475
Find the wrong number in given number series.
3910, 3879, 3786, 3631, 3414, 3235.
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