A photograph is 3 em wide and 5 cm long. If the photograph is enlarged

1.	A photograph is 3 em wide and 5 cm long. If the photograph is enlarged so that the long side iszm. how wide will the photograph be?
Answer» Area of 1 photograph= (5×3)cm^2= 15cm^2area will be same!so let new width=xcmso l×b=15; l is 15cm so b will be 1cm Given:l1=5cm ;b1=3cm ; l2=15cm To find :b2 Now l1/b1=l2/b2 5/3=15/b2b2=15(3/5)b2=9cmThus the new width is 9cm

A photograph is 3 em wide and 5 cm long. If the photograph is enlarged so that the long side iszm. how wide will the photograph be?

Answer»

Area of 1 photograph= (5×3)cm^2= 15cm^2area will be same!so let new width=xcmso l×b=15; l is 15cm so b will be 1cm

Given:l1=5cm ;b1=3cm ; l2=15cm

To find :b2

Now l1/b1=l2/b2

5/3=15/b2b2=15(3/5)b2=9cmThus the new width is 9cm