1.

1). 312). 163). 274). 9

Answer»

237.76 × 14.98 + ?3 + 184.54 × 3.98 = 5036.75

Taking their approx. VALUE;

238 × 15 + ?3 + 185 × 4 = 5037

⇒ 3570 + ?3 + 740 = 5037

⇒ 4310 + ?3 = 5037

⇒ ?3 = 5037 – 4310

⇒ ?3 = 727

∴ ? = ?727 ≈ ?729 = 9



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