(1)Emraan income is 25% more than that of Syed. How many per cent is Syed's income less than that of Emraan?

Question

(2)Ram's income is 20% more than that of Lakshman. How many percent is Lakshman's income less than that of Ram?
(3)Hero's income is 20% less than that of Bill Gates. How many percent is Bill Gates's income more than that of Hero?

Answer 1

I will do the first one, you do the other two in the same way.

"Emraan income is 25% more than that of Syed"
---> E = 1.25*S or (5/4)S
S = E/1.25 or (4/5)E = .8E

.8 = 1 - .2 or 100% - 20%

Syed's income is 20% less than that of Emraan