Dr. Johnson numerates his files using a special algorithm.
The numbers on his first five files are 3, 8, 15, 24, and 35.
Can you guess the number on his next file?
Dr. Johnson numerates his files using a special algorithm.
The numbers on his first five files are 3, 8, 15, 24, and 35.
Can you guess the number on his next file?
Answer:
48
(3+5=8, 8+7=15, 15+9=24, 24+11=35, 35 +13=48, …) or (x+5, +7, +9, +11, +13, …)
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