45% of 240+?% of 360=234

Solution

Let the number to replace the question mark be equal to X

So, 45% of 240+X% of 360=234
45% of 240 = 108

Therefore, X% of 360 = 234 - 108 = 126
Therefore, X = 126/3.6 = 35

Hence, the correct answer is option (b)

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