Question

in africa there is a high population of cicada (a type of insect) every 17 years. in the same part of Africa there is a high population of lizards every 12 years.There was a high population of both cicadas and lizards in year 2001.

In what year will there next be a large population of both cicadas and lizards ?

Answer 1

that wld be lcd of 12 and 17

Answer 2

there is another type of cicada that appears every 13 years

Answer 3

so they only appear together every 13* 17 tears

Answer 4

so whats the next year after 2001 that there will be a large population of both ?

Answer 5

righ tadd on lcd of 12 and 17
12*17 = 204
try 102 - no
lcd = 204

so 2001 + 204 = 2205

Answer 6

year 2205