Question
?2 × 25 = 42 × 21 +
172Â What value should come in place of (?) in the following questions?Solution
?2 × 25 = 42 × 21 + 172 ?2 × 25 = 16 × 21 + 289 => ?2 × 25 = 336 + 289 => ?2 × 25 = 625 => ?2 = 25 => ? = 5
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