Mix930

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Class A - 15 students with the score 90%.
Class B - 5 students with the score 70%.
What is the total average score?

If you mix 400 ml of 9% alcohol
and 300 ml of 8% alcohol, what %
solution will you get? (Nearest to the 10th.)

There are 250 heads of Chickens and Dogs
together. Altogether there are 740 legs.
How many chickens are there?

I have 600 dollars that I want
to split with Tom and Jerry by a ratio
of 2 to 4. How much will Tom get?

Mary is 18 years older than Jerry.
4 years ago, Mary was 4 times as old
as Jerry then. How old is Mary?

The sum of two numbers is 579.
The larger is 9 more than 5 times the smaller.
What is the smaller number?

Mary found 21 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?

If a number is divided by 5 and 7,
the remainder for the both is 3.
What is the smallest possible number?

If Ann does a job in 2 days, and
Bob does it in 8 days, how long do
they take together? (Nearest to the 10th...)

You borrowed $6000 for 7 years
with a 10% interest rate. What will be
the total amount needed to pay off the loan?

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