- A3 sq m
- B7 sq m
- C23 sq m
- D0 sq m
Step-by-Step Solution
First method: 54 + 26 + 0 = 80 sq m (more-than-half counts 1, less-than-half counts 0). Second method: sq m. Difference = 80 - 77 = 3 sq m.
Answer: A) 3 sq m
A village pond is mapped on a grid where each square is 1 sq m.
The survey records: 54 full squares, 26 more-than-half squares, 20 less-than-half squares.
A second, more careful survey instead treats every partly covered square as exactly (there are 26 + 20 = 46 partly covered squares in all).
How many more square metres does the first method give than the second method?
Class 6Area on GridsMensuration
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Area on Grids practice questions
More Class 6 Area on Grids practice
On a grid, each small square is 1 square unit. The shaded shape fully covers 6 small…Riya draws a rectangle on her grid sheet that covers 4 squares across and 3 squares…When estimating area on a grid, a square that is more than half covered is counted as…When estimating area on a grid, a square that is less than half covered is counted as…A leaf traced on a grid covers 8 full squares, 6 more-than-half squares, and 5…