Question

a boy reads 1/4 of a book on the first day.on the second day he read1/3 of the remainning portion.what portion of the book does the boy read in the two days? if 100pages are left to be read .find how many pages are there in the book?

Answer 1

LET TOTAL NO OF PAGES BE X
ON 1ST DAY HE READS =X/4
REMAINING PAGES = 3X/4
ON 2ND DAY HE READS = X/4
TOTAL PORTION READ = 2X/4=X/2
THEN X-X/2=100
OR X=200