SOLUTION: An old jar of dimes and quarters contains 200 coins total, and the value of all the coins is $42.50. How many quarters are in the jar? A. 50 B. 130 C. 127 D. 150

Algebra.Com
Question 1127434: An old jar of dimes and quarters contains 200 coins total, and the value of all the coins is $42.50. How many quarters are in the jar?
A. 50
B. 130
C. 127
D. 150
Answer by ikleyn(52794)   (Show Source): You can put this solution on YOUR website!
.

To answer the question, you DO NOT NEED to solve full scale coin problem.



It is enough simply to substitute given data into the total money expression formula


    total money = 25*Q + 10*(200-Q),


calculate the cents amount and compare with the given options.



Even a second grade student, not familiar with solving equations yet, can do it EASILY.


RELATED QUESTIONS

An old jar of dimes and quarters contains 200 coins total, and the value of all the coins (answered by fractalier)
An old jar of dimes and quarters contains 200 coins total, and the value of all the coins (answered by ewatrrr)
An old jar of dimes and quarters contains 200 coins total, and the value of all the coins (answered by KMST)
An old jar of dimes and quarters contains 200 coins total, and the value of all the coins (answered by addingup)
An old jar of dimes and quarters contains 200 coins total, and the value of all the coins (answered by Alan3354,greenestamps)
A jar contains half dollars and quarters there are 30 coins in all the total value of... (answered by addingup)
A jar filled with only dimes and quarters contains a total of 58 coins. The value of all... (answered by CubeyThePenguin)
A jar filled with nickels and quarters contains a total of 50 coins. The value of all... (answered by srinivas.g)
A jar contains 18 coins, all quarters and dimes. If there are q quarters in the jar, find (answered by Maths68)