Question

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.​

Answer 1

Step-by-step explanation:

length percentage

72 cm 100%

90cm ?

90×100

72

= 125

Answer 2

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.

plzz do like and Mark brainlist too.