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Math 100 Very EZ

This document contains 10 word problems with their answers. The problems involve topics like: calculating rates of work, boat speeds against river currents, ages, filling and draining tanks, dividing work between people, counting coins based on total money and coin amounts, and determining amounts of materials in an alloy based on weight lost in water.

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Luke Skywalker
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89 views1 page

Math 100 Very EZ

This document contains 10 word problems with their answers. The problems involve topics like: calculating rates of work, boat speeds against river currents, ages, filling and draining tanks, dividing work between people, counting coins based on total money and coin amounts, and determining amounts of materials in an alloy based on weight lost in water.

Uploaded by

Luke Skywalker
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Very EZ word problems.

1. If 20 bakers can bake 40 pizzas in 8 hours, how many bakers can bake 10 pizzas
in 2 hours?
A: 20 bakers
2. Two boats start from the same point and travel in opposite directions along a
straight river. The speed of the current in the river is 3 km/h. The speed of one
boat in still water is 2 km/h faster than the other. If they are 100 km apart after 5
hours, what is the speed of each boat in still water?
A: 9 and 11 km/h
3. The sum of Kim’s and Kevins ages is 18. In 3 years, Kim will be twice as old as
Kevin. What are their ages now?
A: 5, 13
4. Mary is 24 years old. Mary is twice as old as Ann was when Mary was as old as
Ann is now. How old is Ann now?
A: 18 years old
5. A tank can be filled in 9 hours by one pipe, 12 hours by a second pipe, and can
be drained by a third pipe in 15 hours. How long will it take to fill an empty tank
with all pipes in operation?
A: 7 hours and 50 minutes
6. A tank is filled with an intake pipe in 2 hours and emptied by an outlet pipe in 4
hours. If both pipes are opened, how long will it take to fill an empty tank?
A: 4 hours
7. If A can do the work in x days and B in y days, how long will they finish the job
working together?
A: xy/x+y
8. Ian has four more quarters than dimes. If he has a total of $1.70, how many
quarters and dimes does he have?
A: Q=6, D=2
9. Sid has $4.85 in coins. If he has six more nickels than dimes and twice as many
quarters as dimes, how many coins of each type does he have?
A: D=7, N=13, Q=14
10. A pound of alloy of lead and nickel weighs 14.4 ounces in water, where lead
loses 1/11 of its weight and nickel loses 1/9 of its weight. How much of each
metal is in the alloy?
A: Pb=8.8, Ni=7.2

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