Let Mr Lim (Terry) = 1 unit.

Mr Tan = 1 unit + \(\$20\).
Total = 2 units + \(\$20 = \$410\).
2 units = \(\$390\) → 1 unit = \(\$195\).
Mr Lim = \(\$195\), Mr Tan = \(\$195 + \$20 = \$215\).

Final Answer: Mr Tan = \(\$215\), Mr Lim = \(\$195\)