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Problem Solving Butler: July 2024 July 1 PS 1 PS 2

yes its -1 not -5, given the answer as 7-2+6-1=10, mb

assume water as 0 % milk initial milk is 80 % final milk is 60 % apply allegations and mixture concept x/45 = ( 0.8 - 0.6) / ( 0.6 - 0)

Milk = 4 * 45 / 5 = 36 now this ratio of milk to the water 36 / (40-9) we need to change it in 3/2 so for converting 36 / 9 into we will need 15 more ltr of water therefore if we add 15 into 9 now water will become 24 and ratio will be 36/24 = 3/2

sorry miss type "36 / (45-36) = 36 / 9 ratio we need to change it in 3/2"

Can you explain your 150 IQ approach?

Simple go with ratio only Milk:water =36/9 36/(9+x)=3/2 Ok solving x will get 15

4:1 of 45 litres would mean 36 l of milk and 9 l of water Now we want for 36 l of milk, we need 24 of water to get 3:2 ratio, means we need 24-9=15l

Why isn’t the answer 12? My logic: There are 12 centers and each center is represented by one or two colors. To minimize the no of color used, we take 1 color for each centers, So the answer has to be 12.

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