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Doctors Medicines MCQs Q&A

  1. 40 kg
  2. 35 kg
  3. 45 kg
  4. 37 kg
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1 Answers

Option 4 : 37 kg

Formula Used

Average = Total/number of terms

Calculation

A + B + C = 53 × 3 = 159 kg

A + B + C + D = 49 × 4 = 196 kg      ---- (I)

⇒ D = 196 – 159 = 37 kg

So, E = D + 8

E = 37 + 8 = 45 kg

Now,

B + C + D + E = 51 × 4 = 204 kg      ---- (II)

From equation (I) and (II),

E – A = 204 – 196 = 8 kg

⇒ 45 – A = 8

⇒ A = 37 kg

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Related Questions

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