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Ex 7.2, 3 - Chapter 7 Class 7 Comparing Quantities
Last updated at July 3, 2023 by Teachoo
Ex 7.2
Ex 7.2, 1 (a)
Ex 7.2, 1 (b) Important
Ex 7.2, 1 (c)
Ex 7.2, 1 (d) Important
Ex 7.2, 2 (a)
Ex 7.2, 2 (b) Important
Ex 7.2, 2 (c) Important
Ex 7.2, 2 (d)
Ex 7.2, 3 You are here
Ex 7.2, 4 Important
Ex 7.2, 5
Ex 7.2, 6 Important
Ex 7.2, 7 Important
Ex 7.2, 8
Ex 7.2, 9 (a) Important
Ex 7.2, 9 (b)
Ex 7.2, 10
Ex 7.2, 11 Important
Transcript
Ex 7.2, 3 The population of a city decreased from 25,000 to 24,500. Find the percentage decrease. Initial population = 25,000 Final population = 24,500 Decrease in population = Initial population − Final population = 25,000 − 24, 500 = 500 Percentage decrease in population = (𝐷𝑒𝑐𝑟𝑒𝑎𝑠𝑒 𝑖𝑛 𝑝𝑜𝑝𝑢𝑙𝑎𝑡𝑖𝑜𝑛)/(𝐼𝑛𝑖𝑡𝑖𝑎𝑙 𝑝𝑜𝑝𝑢𝑙𝑎𝑡𝑖𝑜𝑛) × 100% = 𝟓𝟎𝟎/(𝟐𝟓,𝟎𝟎𝟎) × 100% = 5/250 × 100% = 5/25 × 10% = 1/5 × 10% = 2%
