Question

Every resident in Guwahati can speak either assamese or english. If 70% can speak
assamese and 55% can speak english. What percent can speak both?

Answer 1

So hundred is the Total number

so 100 = 70 + 55 - x

as n(aub) = n(a) + n(b) + n(aπb)

So x= 125 - 100

= 25