Bank Preparation
Bank Math
ব্যাংক নিয়োগ
Combined Bank
Janata & Rupali Bank Limited - Officer (General) - 13.12.2019
Probability, Permutation and Combination
Janata & Rupali Bank Limited - Officer (General) - 13.12.2019
A box contains 21 balls numbered 1 to 21. A ball is drawn and without replacement. What is the probability that both balls are even numbered?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
1 (3/14)