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How to solve percentage math problems?
To solve a percentage math problem,
you can easily set up a proportion.
example:
What is 13% of 52?
x 13
--- = ---
52 100
now cross multiply (do this by criss-crossing and multiply the crisscrossed numbers.) so,
100x=676
/100 /100
x=6.76
6.76 is your answer
A cross section of a standard or nominal two by four board actually measures 1.5 in by 3.5 in. The rought board is 2 in by 4 in. but is planed and dried to the finished size. What percent of the wood is removed in planing and drying?
if shop sells a video recorder at discount of 5% it will make profit of $50.If it sells teh video recorder at a discount of 20% it will make lose of $100.Find the cost price of the video recorder.
Answer is $1000
selling at 95% of 1000 is 950
profit of 50
950-50=900, store kept $50
selling at 80% of 1000 is 800
loss of 100
800+100=900, store had to add $100
if the percentage increase from 108 to 1662 ia the same as the increase from 44 to what number?
how to solve math percentage problems?
105 % 5 =