Multiple choice

Three containers of equal volume contains milk and water. The ratios of milk and water are 2 : 3, 3 : 4 and 4 : 5 respectively. Contents of these containers are poured in a large container. The ratio of milk and water in the large container is

  1. 411 : 540

  2. 401 : 544

  3. 417 : 564

  4. 407 : 560

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

Milk in containers: 2/5, 3/7, 4/9. Water in containers: 3/5, 4/7, 5/9. Total milk = (2/5 + 3/7 + 4/9) = 126/315 + 135/315 + 140/315 = 401/315. Total water = (3/5 + 4/7 + 5/9) = 189/315 + 180/315 + 175/315 = 544/315. Ratio milk:water = 401:544.