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What will come in place of the question mark (?) in the following equation? 37% of 700 - 39% of 400 = ? - 31% of 300

1. 187
2. 205
3. 159
4. 202

Correct answer: 205

Solution

37% of 700 = 259 and 39% of 400 = 156, so the left side becomes 103. Also, 31% of 300 = 93. Therefore ? - 93 = 103, giving ? = 196? Wait, check carefully: 103 = ? - 93, so ? = 196. However, the provided answer option indicates 205, which suggests the intended calculation is 37% of 700 - 39% of 400 = ? - 31% of 300 with ? = 205 only if the expression is interpreted differently. Based on the standard arithmetic, the correct computed value is 196.

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