Hotels under 75lbs in London

Hi there i am organizing a trip for my mother who's 71 and my sister who has never been to Europe so I am looking for accommodation in a cental London maybe Earl's Court where there are resteraunts nearby and where they can feel safe. A chain might be good as they are going to Rome and Amsterdam as well. Any suggestions on a place where you might send your mother that you still love besides.....??

Under 75lbs?

Are they both anorexic?

just to explain DD's comment, the abbreviation lb refers to pounds in weight, not currency!

Earl's Court isn't central; it's a trek to anywhere. The Travelodge on Gray's Inn Road (King's Cross) is pretty central; Holiday Inn Express is also available at that sort of budget.

travelodge have a place in Covent Garden, I believe. Nice and central.
Avoid Earls Court like the plague.

There may be some places on my page which suit. The focus is more for rooms under or around 50 pounds per night:

London budget accommodation