Mix240

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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?

There are 130 heads of Chickens and Dogs
together. Altogether there are 420 legs.
How many chickens are there?

Mary found 29 eggs. She found 7 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?

The sum of two numbers is 490.
The larger is 14 more than 3 times the smaller.
What is the smaller number?

I have 1200 dollars that I want
to split with Tom and Jerry by a ratio
of 4 to 8. How much will Tom get?

If you mix 800 ml of 9% alcohol
and 400 ml of 7% alcohol, what %
solution will you get? (Nearest to the 10th.)

You borrowed $4000 for 5 years
with a 5% interest rate. What will be
the total amount needed to pay off the loan?

If a number is divided by 9 and 11,
the remainder for the both is 6.
What is the smallest possible number?

If Ann does a job in 3 days, and
Bob does it in 6 days, how long do
they take together? (Nearest to the 10th...)

Class A - 7 students with the score 50%.
Class B - 3 students with the score 40%.
What is the total average score?

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