The answer is 51 !!
Explanation :
Consider the worm as A, bug as B and the ant as C
Let's go through each expression and solve them step by step:
Expression 1: A + A + A = 12
3A = 12
A = 12 / 3
A = 4
Expression 2: A x B + C = ?
Expression 3: B + B + B = 30
3B = 30
B = 30 / 3
B = 10
Expression 4: C + C - A = 18
C + C - 4 = 18
2C - 4 = 18
2C = 18 + 4
2C = 22
C = 22 / 2
C = 11
To summarize:
-> A = 4
-> B = 10
-> C = 11
A x B + C = 4 x 10 + 11
As per BODMAS rule, first Multiplication then Addition
A x B + C = 40 + 11
A x B + C = 51
Thus the answer is 51 !

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