As per the question
Ila read 25 pages out of 100 pages.
Fraction of the book read by Ila =25100=14th part of book.
Lalita read 25th part of book
Comparing 25and 14:
LCM of 5 and 4 is 20
So, 25=2×45×4=820 and 14=1×54×5=520Now comparing the numerators, 8 > 5
So, 820>520
That is, 25 > 14
Therefore, Ila read less.