Georgia is working on a math test with 75 problems on it. After 20 minutes she has completed 10 problems. After another 20 minutes, she has completed twice as many problems. She has 40 minutes to complete the rest of the test. How many problems does she have left to solve?
Let's think: Georgia's test started with 75 problems and then Georgia completed 10, 75 - 10 = 65 problems. After 20 minutes she completes twice as many problems, 10 x 2 = 20. With 40 minutes left she has completed 10 + 20 problems = 30 problems. From the original 75 problems she has solved 30, 75 - 30 = 45 problems she has left.. The answer is: 45.

Bobby made a big batch of soup weighing 80 kg. Each day the batch gets reduced by half. How many kg will it reach on the fourth day after he made the soup?
Let's think: On the first day, the soup reduces down to 80 / 2 = 40 kg. On the second day, it reduces down to 40 / 2 = 20 kg. On the third day, it is reduced to 20 / 2 = 10 kg. And on the fourth day, it is finally down to 10 / 2 = 5 kg.. The answer is: 5.

Melly's two cats each have litters of kittens at the same time. The first cat has 3 blue-eyed kittens and 7 brown-eyed kittens. The second cat has 4 blue-eyed kittens and 6 brown-eyed kittens. What percentage of all the kittens have blue eyes?
Let's think: First find the total number of blue - eyed kittens: 3 kittens + 4 kittens = 7 kittens. Then find the total number of brown - eyed kittens: 7 kittens + 6 kittens = 13 kittens. Then add the number of each type of kitten to find the total number of kittens: 7 kittens + 13 kittens = 20 kittens. Then divide the number of blue - eyed kittens by the total number of kittens and multiply by 100% to express the answer as a percentage: 7 kittens / 20 kittens * 100% = 35%.. The answer is: 35.

A secretary who has been working for 6 years and who earns €10,000 a month has obtained a salary increase of 2%. What is her new salary?
Let's think:
We have the amount the salary will increase: 10000 * 2 / 100 = 200€. So the new salary is: 10000 + 200 = 10200€.. The answer is: 10200.