Question

pls answer to Q. 1
show the method

Answer 1

0.3 bar + 0.4 bar


= 0.7 bar



Convert 0.3 bar to fraction

0.3 bar = 3/9

and 0.4 bar = 4/9

So add them

= 3/9 + 4/9

= 7/9

Now 7/9 = 0.7 bar


Hence answer is 0.7 bar

Answer 2

hope this helps u......