Question

How many envelopes can be made out of a sheet of paper 125cm by 85cm,supposing one envelope requires a piece of paper of size and 17cm by 5cm ?​

Answer 1

Let the at A be x k

and the B be y k

when the is x−y

Dist=100km

⟾ =5 hours

∴  Dist =S×T

⟾ 100=(x−y)5

⟾ x−y=20⟶(I)

when THE is x+y

⟾ Dist=100km

⟾ t=1 hours

⟾ Dist=ST

⟾ 100=(x+y)1

⟾ x+y=100⟶(II)

Solving (I) & (II)

⟾ x−y=20

⟾ x+y=100

​⟾ 2x=120

⟾ x=60km/h

⟾ y=40km/h

Answer 2

Answer:

125 envelopes

Step-by-step explanation:

Area of sheet = n* Area of envelope,

where n is the number of envelopes.

125*85 = n*17*5

n=( 125*85)/(17*5)

n= 10625/85

n= 125

Therefore, 125 envelopes can be made.

Hope it will help....