Last week’s answer: 1 in 4, 25%, 0.25 or 1/4. There are four suits in the pack of 52, each with 13 cards, so the probability of picking a spade is 13 in 52 or 1 in 4.
This week’s problem: Betsy earns £X per day and works 4 days a week. She also gets £Y per week as a bonus. How much does Betsy earn in 4 weeks?
The answer will be in next week’s weekly problem.