1.

1). 882). 823). 894). 97

Answer»

31.992 × 28.196/6.932 + 677.993 – 320.898 = ? × 4.889

Taking their APPROX. values

32 × 28/7 + 678 – 321 = ? × 5

⇒ 32 × 4 + 678 – 321 = ? × 5

⇒ ? × 5 = 128 + 678 – 321

⇒ ? = 485/5

⇒ ? = 97



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