A bucket of capacity 2000 mL is to be filled by using containers measuring 200 mL and 300 mL. Which one of the following combinations of containers is not correct for filling the bucket completely by the containers of 200 mL and 300 mL respectively?

Question

Accepted Answer

6, 3. We need 200a + 300b = 2000. Check each: (1) 1×200 + 6×300 = 200+1800 = 2000 ✓; (2) 4×200 + 4×300 = 800+1200 = 2000 ✓; (3) 7×200 + 2×300 = 1400+600 = 2000 ✓; (4) 6×200 + 3×300 = 1200+900 = 2100 ≠ 2000 ✗. So option (4) is not correct.

A bucket of capacity 2000 mL is to be filled by using containers measuring 200 mL and 300 mL. Which one of the following combinations of containers is not correct for filling the bucket completely by the containers of 200 mL and 300 mL respectively?

Explanation

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