The following bar graph shows the number of males, number of females and total population of four different villages. Find the total number of children in the four villages.

860

Total population = No. of males + No. of females + No. of children

⇒ No. of children = Total population - No. of males - No. of females

                           No. of children

Village A     = 1500 - 820 - 400 = 280

Village B     = 1600 - 1040 - 320 = 240

Village C     = 1400 - 760 - 420 = 220

Village D     = 1000 - 580 - 300 = 120

Total no. of children = 280 + 240 + 220 + 120 = 860