Question
11 × 25 + 12 × 15 + 14 × 20 + 15 =
? What will come in the place of question mark in the given expression (?)Solution
ATQ, 11 × 25 + 12 × 15 + 14 × 20 + 15 = ? 5 × {(11 × 5) + (12 × 3) + (14 × 4) + 3} = ? ? = 5 × (55 + 36 + 56 + 3) ? = 5 × 150 ? = 750
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