A pair of hamsters can give birth to a pair of baby hamsters every month. Each pair of baby hamsters needs 1 month to mature and then this pair of hamsters will in turn give birth to a pair of baby hamsters every month. How many pairs of hamsters are there after 6 months? (4 marks)
The last digit represents the number of pairs of hamsters born. The front digits/alphabet represent the parents. Remember to add 1 (S).