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What numbers are missing from the pattern below? Enter your answer, usinga comma to separate each number.15, 16, 18, 21, ?, ?, ?, ?, 51, 60, 70, 81Answer hereSUBMIT

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SOLUTION

Looking at the sequence 15, 16, 18, 21, ?, ?, ?, ?, 51, 60, 70, 81

The next number is gotten by increasing the number added by 1. That is

[tex]\begin{gathered} 15+1=16 \\ 16+2=18 \\ 18+3=21 \\ 21+4=25 \\ 25+5=30 \\ 30+6=36 \\ 36+7=43 \\ 43+8=51 \\ 51+9=60 \\ 60+10=70 \\ 70+11=81 \end{gathered}[/tex]

So, the missing numbers are 25, 30, 36, 43

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