20%, is 192. Find the number.
3. An elastic band which is 72 cm long, is stretched
to 90 cm. Find the percentage increase in its length.
Answers
Answered by
0
Step-by-step explanation:
length percentage
72 cm 100%
90cm ?
90×100
72
= 125
Answered by
1
Answer:
1.960 is 100%.
2.25% lenght is increased
Step-by-step explanation:
Answer of 1.
20%=192
100%=x (let x be the 100%)
So,192/x=20%/100%
x=960
The number is 960.
Answer of 2.
initial lenght =72cm
stretched length =90cm
total stretched = stretched length - initial length
=90-72=18cm
so, 18/72×100=25%.
25% is lenght increased.
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