Question
When 42 is taken away from 12 times a number, the result
is 66 more than 5 times the number. What is the approximate number?Solution
Let the number be ‘x’
Then, according to the question,
(12x – 42) = 5x + 66
Or, 12x – 5x = 66 + 42
Or, 7x = 108
So, x = (108/7) = 15.43 or approx 15
More No. System Questions
728, 737, ?, 778, 814, 863
What will come in place of the question mark (?) in the following series?
102, 111, 136, 185, 266, ?
What will come in place of the question mark (?) in the following series?
10, 135, ?, 226, 234, 235
7, 176, ?, 378, 427, 452
...18, 10, 12, 21, ?, 120
126 56 ? 12 10 2
...- What will come in place of (?) in the given number series.
2, 6, 15, 31, 56, ? What will come in place of (?) question mark in the given number series.
5, 15, 35, 75, 155, ?
8 24 48 144 288 ?
...7 4 5 9 20 ? 160.5
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