disc. price= mark. price - selling price
disc price will be 62.5.
S.P = 562.50
so discount must be
✓ 62.50 is discount
kyu dun mein tujhe
pgl lag hun kya
supplementary angles :
these are angles that add up to 180°
could be angles in a triangle in case we have three angles.
since in question the options given are a pair we should consider angles on a straight line.
angles on a straight line add up to 180°
from the given pairs pick pairs that are on a straight line.
i you are missing the diagrams but from my explanation you can easily pick the supplementary angles.