Question

In jungle one year monkey population increased in a ratio of 8:7 but the next year it is decreased in the ratio of 16:17.Tell how many monkeys were in jungle after 2years if there were 2975 monkeys ?

Answer 1

Answer:

Population of monkeys after 2 years = 3200

Step-by-step explanation:

Total number of monkeys at the start = 2975

Increase ratio of monkey population one year = $8:7$

∴ New population of monkeys after 1 year= $Total\ population \times Increase\ ratio = 2975\times \frac{8}{7} =3400$

Decrease ratio the next year = $16:17$

∴  Population of monkeys after 2 years= $New\ population \times Decrease\ ratio = 3400\times \frac{16}{17} =3200$