Question

4. Anna, Beate and Cindy buy a bag of 30 biscuits together. They get 10 biscuits each. But Anna has paid 80 cents, Beate 50 cents and Cindy 20 cents. How many more biscuits should Anna have got, if they had shared them in proportion with the amount they had each paid? (A) 10 (B)9 (C) 8 (D) 7 (E) 6​

Answer 1

• Option E. 6.

Explanation:

80:50:20 or 8:5:2. 8 ÷ 15 * 30 = 16 = 16 - 10 = 6. This is the solution.

• Option A. 30 + 10 = 40. Incorrect. The solution is unequal to this.
• Option B. 30 + 9 = 39. Incorrect. The solution is unequal to this.
• Option C. 30 + 8 = 38. Incorrect. The solution is unequal to this.
• Option D. 30 + 7 = 37. Incorrect. The solution is unequal to this.
• Option E. 30 + 6 = 36. Correct. The solution equals this answer.

Option E will be the answer.