Question
Some worksheets were distributed among (2x + 2) students
such that each student received 9 worksheets. If there had been 8 students more, then worksheets received by each student would have been 3 less. Find the value of ‘x’.Solution
According to the question, (2x + 2) × 9 = (2x + 2 + 8) × 6 Or, 18x + 18 = 12x + 60 Or, 6x = 42 Or, x = 7
More No. System Questions
Find the wrong number in the given number series.
120, 126, 138, 162, 220, 306
217Â Â Â Â 210Â Â Â Â Â 236Â Â Â Â Â 299Â Â Â Â Â 423Â Â Â Â 640
...112, 222, 440, 872, 1717 , 3424
In each of the following giving number series, a wrong number is given. Find out the wrong number?
82, 81, 86, 110, 168, 287
- 78, 86, 71, 95, 60, 112
2100, 2140, 2186, 2240, 2300, 2372
9, 10, 12, 18, 42, 160
A-5,  A,  35,  52, 78, 115
Find the wrong number in the given number series.
233, 206, 183, 152, 125, 98
Find the wrong number in the given number series.
2, 4, 12, 48, 120, 1440
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