NCERT Figure it Out 1 - Q3 - Tales by Dots and Lines
Question: Average height of 24 students is 150.2 cm, but each was measured wearing shoes that add 1 cm. (i) Is there a simpler way than remeasuring? (ii) What is the correct average? Choose from the options.
Answer: (i) Subtract 1 cm from the mean. (ii) 149.2 cm (option d).
Full step-by-step NCERT solution with diagrams on Something by Zero.