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Mary is 20 years older than Jerry.
7 years ago, Mary was 6 times as old
as Jerry then. How old is Mary?

If you mix 800 ml of 8% alcohol
and 600 ml of 8% alcohol, what %
solution will you get? (Nearest to the 10th.)

Class A - 12 students with the score 60%.
Class B - 8 students with the score 70%.
What is the total average score?

The sum of two numbers is 330.
The larger is 10 more than 4 times the smaller.
What is the smaller number?

If Ann does a job in 3 days, and
Bob does it in 9 days, how long do
they take together? (Nearest to the 10th...)

I have 1400 dollars that I want
to split with Tom and Jerry by a ratio
of 6 to 8. How much will Tom get?

You borrowed $10000 for 2 years
with a 8% interest rate. What will be
the total amount needed to pay off the loan?

Mary found 42 eggs. She found 16 more eggs than Tom. Gina was so happy because she found exactly as many eggs as Mary and Tom together. How many eggs did Gina find?

If a number is divided by 10 and 5,
the remainder for the both is 1.
What is the smallest possible number?

There are 230 heads of Chickens and Dogs
together. Altogether there are 700 legs.
How many chickens are there?

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