$$25+6\times 4=49$$，$$49+1=50$$ 
Henry starts to read a $$290$$-page book on a Monday. He reads four pages every day except on Sundays when he reads $$25$$ pages. He will read the book starting from page~\uline{~~~~~~~~~~}~next Monday. 
Options:
a) $$24$$ 
b) $$49$$ 
c) $$50$$ 
d) $$240$$ 