Question

A farmer planted 1890 tomato plants in a field in rows each having 63 plants. A certain type of worm destroyed 18 plants in each row. How many plants did the worm destroy in the whole field?

Answer 1

Total number of plants = number of rows × number of plants

⇒ 1890 = number of rows × 63

⇒ 1890/63 = number of rows

⇒ number of rows = 30

Now, number of plants destroyed by worm in 1 row = 18

∴ Total number of plants destroyed by worm in 30 rows = 18 × 30 = 540