NCERT Figure it Out 3 - Q4 - Tales by Dots and Lines

Question: Fill blanks so the mean is 6.5: 3, 11, ____, _____, 15, 6. How many possibilities if only counting numbers are allowed?

Answer: Blanks sum to 4; counting-number ordered pairs: (1,3), (3,1), (2,2).

Full step-by-step NCERT solution with diagrams on Something by Zero.