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What will come in place of the question mark (?) in the following expression? \[(8 + 6 \times 7) \div 10 \times 3 = ?\]

1. 18
2. 20
3. 30
4. 15

Correct answer: 15

Solution

First calculate inside the bracket: 6 × 7 = 42, so 8 + 42 = 50. Then perform division and multiplication from left to right: 50 ÷ 10 = 5, and 5 × 3 = 15.

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