If professor nitwit is given 3 numbers 4, 9 and 13, what is the sum of the hash numbers he obtains for the three numbers?
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You forgot to add the options to this question: Following are the options:
a. 297
b. 273
c. 290
d. 278
The answer to this question is D.
As we are subtracting 2 continuously from the resulting numbers, get a progression with a common difference of 2 and we need to multiply the sum by 2 to get hash number.
For example 5: (3 + 1) × 2 = 8
19 : (17 + 15 + 13 + ......+1) × 2 = 81 × 2 = 162
7 : (5 + 3 + 1) × 2 = 18
15: (13 + 11 + 9 + 7 + 5 + 3 + 1) × 2 = 98
Sum of the hash numbers = 278
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