Revocation by non- fulfilment of a condition precedent to acceptance. An offer stand revoked if the offeree fails to fulfill a condition precedent to acceptance [sec. 6 (3)]. Thus, where A, offers to sell his scooter to B for Rs. 4,000. if B joins the lions club within a week the offer stands revoked and cannot be accepted be B if B fails to join the lions club. (in default of payment of earnest money.)