Question

Belinda babysits her neighbor's children in the evening every 14 days. belinda goes to visit her grandmother in the afternoon every 21 days. belinda has both activities planned for today. will belinda have both activities again on the same day within 30 days?

Answer 1

Answer:

NO

Step-by-step explanation:

Multiples of 14 are 14, 28, 42, 56, ...

Multiples of 21 are 21, 42, 63, ...

LCM(14, 21) = 42

If Belinda has both activities planned for today, next both activities will be in 42 days. ⇒ Belinda will not have both activities on the same day within 30 days.