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Number reasoning: 1, 2, 3, 7, 16, (), the number in brackets should be? A.58 B.62 C.65 D.68
Choose C, the rule is 1 square + 2 = 3, 2 square + 3 = 7, 3 square + 7 = 16 So the next one is 7 square + 16 = 65
1, 2, 3, 6, (), 24 number reasoning, how much should be filled in brackets?
12
Equal to the sum of all the preceding numbers
1,6,19,46,93, () number reasoning, what to fill in the brackets?
166
6＝1+5
19＝6+13
46＝19+27
93＝46+47
13－5＝8
27－13＝14
47－27＝20
8－14－20－26
Therefore, 47 + 26 = 73, 73 + 93 = 166
227 238 251 259 (). Number in brackets
I have an answer. Don't just stick an answer. We need to explain.
Answer: 227 + 2 + 2 + 7 = 238
238+2+3+8=251
251+2+5+1=259
259 + 2 + 5 + 9 = 275, I don't see any other regularity except the first full plus 2. Seek an explanation
The hundreds and tens of 227 are 2 + 2 + 7
238's 100, 10, 2 + 3 + 8
The hundred and ten of 251 are 2 + 5 + 1
The hundreds and tens of 259 are 2 + 5 + 9
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