Multiple choice

Three bottles contain equal mixtures of spirit and water in the ratio 6 : 1, 5 : 2 and 3 : 1 respectively. If all the solutions are mixed together, the ratio of spirit to water in the final mixture will be?

  1. 64: 65

  2. 65: 64

  3. 19: 65

  4. 65:19

  5. 19: 64

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ratios are 6:1 (total 7), 5:2 (total 7), 3:1 (total 4). To mix equal volumes, find a common multiple of 7 and 4, which is 28. Multiply ratios: 6:1 becomes 24:4, 5:2 becomes 20:8, 3:1 becomes 21:7. Summing spirit: 24+20+21 = 65. Summing water: 4+8+7 = 19. The ratio is 65:19.