The answer is 5
The answer is number 5 because
5 - 10 = -5
In terms of absolute value I -5 I = 5
Find four numbers so that the same answer is obtained when:
(a) 4 is added to the first
(b) 4 is subtracted from the second
(c) the third is multiplied by 4
(d) the fourth is divided by 4.
Clue: they add up to 75.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
The above are the first 10 positive integers. The product of the numbers before the number __ is the same as the product of the numbers after that number.
Is it possible to write all integer from 1 to 10 in a row in some order such that any two adjacent number add up to a prime number ?
Rohan started the day with the same number of phone calls to make as Ketan.
By lunchtime, Rohan had made two-fifths of his phone calls, while Ketan had completed only a quarter of his.
If the difference between the remaining numbers of calls to be made was nine, how many calls did Rohan have left to make?
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