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08 Jan 2004, 18:13
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What is the % change in the area of a rectangle if its length increases by a third and its width decreases by a fourth?
a. 8.33% increase
b. 6.25% increase
c. 2.2% decrease
d. 0% increase
a. 8.33% increase
b. 6.25% increase
c. 2.2% decrease
d. 0% increase
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08 Jan 2004, 18:19
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sunniboy007
What is the % change in the area of a rectangle if its length increases by a third and its width decreases by a fourth?
a. 8.33% increase
b. 6.25% increase
c. 2.2% decrease
d. 0% increase
a. 8.33% increase
b. 6.25% increase
c. 2.2% decrease
d. 0% increase
new length = 1+1/3 = 4/3L
new width = 1-1/4 = 3/4B
no increase
~30sec
08 Jan 2004, 18:20
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0% increase
the fastest way is using the formula
a-b-ab/100 where a is the value that increases and b is the value that decreases. so 33.33 - 25 - 33.33* 25/100 = 0%
the fastest way is using the formula
a-b-ab/100 where a is the value that increases and b is the value that decreases. so 33.33 - 25 - 33.33* 25/100 = 0%
