Exercise of the Week #13

A little maths exercise worthy of the heatwave.

Last Week’s Answers

In this sequence question, we mustn’t rule anything out as a red herring or distractor: part of the pattern that is only included to draw your attention from what’s actually happening.

In this puzzle, everything is important!

1. Between each pattern, we can see that the star is changing. If there is a shape which appears throughout the sequence, look to see whether it is rotating, reflecting, growing/shrinking or changing. In this sequence, the star is gaining a point each time.

2. The spiral is also consistent - as above, we need to think about how. In this sequence, the spiral is flipping each time.

3. There’s also something going on with these dots. It’s not enough to say that there’s one extra dot; that’s too surface level. Instead, notice that the new dot remains, and each time, another dot is added. Another way to think about this is that the black dot moves and is replaced by a grey dot each time.

Three things to spot! How many did you find?

Exercise of the Week #10

Maths! Pirates! Avast!

Last Week’s Answers

To solve coded word problems such as this, you need to look for shared letters and letter groups within the words.

Two of our words start with an ‘H’, and two of our numbers start with a ‘1’, which tells us that H = 1.

One of our H words ends with S, and one of our other words begins with an S. We need to find a number that does the same thing – starts with a digit that one of the other numbers ends with.

So, take a look at the numbers which start with 1: one of them ends with a 5, but none of the other letter codes start with a 5. One of them ends with a 6, and another letter code starts with a 6.

This tells us that S = 6.

We can now see that SCOUR = 67342, as it is the only word starting with an S.

Let’s review what we now know.

1 = H

2 = R

3 = O

4 = U

5 = ?

6 = S

7 = C

8 = ?

9 = ?

We have a few letters in 13485: HOU??

The only word which matches this opening is HOUND. Which tells us that 8 = N and 5 = D.

We can work out our final letter by looking at 14896: HUNTS. This tells us that 9 = T.

We now know all the letters and the questions are easy to solve.

1 = H

2 = R

3 = O

4 = U

5 = D

6 = S

7 = C

8 = N

9 = T

1. SCOUR = 67342

2. CRUSH = 72461

3. STUNTS = 694896

4. 13961396 = HOTSHOTS

5. CONSTRUCTORS = 738692479326

Kudos if you found the last one without mistake.

Exercise of the Week #7

We’re back after a holiday hiatus, returning with some shapes.

Last Week’s Answers

Use the key to work out which lines must be added to the empty cells. If you got it correct, they should spell out ‘HAPPY EASTER’!

Exercise of the Week #4

Back to mathematics this week, as we look at a viral problem you might’ve encountered before.

Last Week’s Answers

Agnetha says she is a liar. It’s a bit of a paradox, but if you’re a liar, you can’t admit to it, because then you’d be telling the truth. Likewise, you can’t be a truth-teller and call yourself a liar.

However, Agnetha actually says: ‘Brillon and I are also liars’. This statement can be a lie if Brillon is a truth-teller.

As we know Brillon is a truth-teller, what Charlton says is true, making him a truth-teller too!

So:

Agnetha is a liar, and the others are both truth-tellers.

Exercise of the Week #1

I’ve decided to launch exercise of the week!

Be sure to check back each week for a new mathematics, English or reasoning exercise.

The answers will be posted next time. Good luck!