Question

11. in a competitive exam positive 4 was alloted for each correct answer and negative 2 was
alloted for each incorrect answer Aakanksha appeared for the exam and attempted 43
questions out of 100. If she is certain that she has marked-35 correct answers calculate
the marks obtained by her​

Answer 1

Answer:

Given angle of pentagon are x,x+20,x+40,x+60 and x+80

We know that sum of angle of pentagon =540

0

Then x+x+20+x+40+x+60+x+80=540

⇒5x+200=540

⇒5x=540−200

⇒x=

5

340

=68

o

Then smallest angle of pentagon is 68

o