Sequence Word Problems

Daniel Math Academy · Grade 7 Math

Sequence Word Problems

Skill S.3 · Arithmetic & geometric sequences · ★★☆ Medium

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Answer each question.

1. 1
   A colony starts with $20$ bacteria and doubles every hour. How many bacteria are there after $7$ hours?
2. 2
   A colony starts with $20$ bacteria and doubles every hour. How many bacteria are there after $5$ hours?
3. 3
   A colony starts with $10$ bacteria and doubles every hour. How many bacteria are there after $4$ hours?
4. 4
   A colony starts with $5$ bacteria and doubles every hour. How many bacteria are there after $6$ hours?

Daniel Math Academy · Grade 7 Math

Answer Key

S.3 Sequence Word Problems · ★★☆ Medium

1. 1$2,560$ bacteria
2. 2$640$ bacteria
3. 3$160$ bacteria
4. 4$320$ bacteria