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Select the correct combination of mathematical signs to replace $^{\ast}$ signs and to balance the following equation :

$18 \ast 2 \ast 5 \ast 4 = 10$

1. $\times \div +$
2. $+ \times \div$
3. $\div + –$
4. $\div \times +$

Option (C) is correct here:

$18 \div 2+5-4\implies9+5-4\implies14-4=10$
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