Answer
$$28.3 \mathrm{\ MeV}
$$
Work Step by Step
The total binding energy is
$$
\Delta E_{\mathrm{be}}=\Delta E_{1}+\Delta E_{2}+\Delta E_{3}=19.8 \mathrm{MeV}+6.26 \mathrm{MeV}+2.23 \mathrm{MeV}=28.3 \mathrm{MeV}
$$
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