Mix103

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Class A - 5 students with the score 70%.
Class B - 5 students with the score 80%.
What is the total average score?

Mary is 15 years older than Jerry.
4 years ago, Mary was 6 times as old
as Jerry then. How old is Mary?

You borrowed $9000 for 2 years
with a 5% interest rate. What will be
the total amount needed to pay off the loan?

If you mix 600 ml of 5% alcohol
and 700 ml of 8% alcohol, what %
solution will you get? (Nearest to the 10th.)

Mary found 31 eggs. She found 9 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 836.
The larger is 20 more than 7 times the smaller.
What is the smaller number?

I have 800 dollars that I want
to split with Tom and Jerry by a ratio
of 3 to 5. How much will Tom get?

There are 130 heads of Chickens and Dogs
together. Altogether there are 380 legs.
How many chickens are there?

If a number is divided by 7 and 11,
the remainder for the both is 4.
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...)

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