10ticks Friday Puzzle

This week's Friday Puzzle

Draw a straight line/s so the shape is split into two congruent halves.

This is a fishy problem.

Friday Puzzle (07/09/2018)

Alex catches between 60 and 90 fish.

She counts them in fours and has 3 fish left over.

She counts them in fives and has 1 fish left over.

How many fish does she catch?

Friday Puzzle (17/08/2018)

With one straight cut you can slice a pie into two pieces.

A second cut will produce four pieces of pie and a third cut can produce up to seven pieces of pie.

What is the largest number of pieces of pie that you can get with six straight cuts?

Friday Puzzle (10/08/2018)

A spider is at the vertex X on a cube of side length 12 cm. It strolls along the marked path to vertex Y.

How far has the spider strolled?

Friday Puzzle (03/08/2018)

A goldfish costs £1.40 and a swordtail fish costs £1.80.

Chris spent exactly £20 for some of these fish.

How many of each did he buy?

Friday Puzzle (27/07/2018)

At which whole hour times are the angles between the minute hand and the hour hand 120 degrees?

Friday Puzzle (13/07/2018)

Different shapes represent different digits.

What digit does each shape represent?

Friday Puzzle (06/07/2018)

The large triangle has side lengths 5 cm.

What percentage of the triangle is shaded red?

Friday Puzzle (29/06/2018)

Eight ping-pong balls are marked 1, 2, 4, 8, 16, 32, 64 and 128.

Chris takes some ping-pong  balls and Paul has the rest.

When they sum up the numbers Paul’s sum is 31 more than Chris’.

How many ping-pong balls did Chris take?

Friday Puzzle (22/06/2018)

Jean writes four consecutive positive integers.

She then calculates the four possible totals made by taking three of the integers at a time.

None of these totals is a prime number.

What is the smallest possible integer Jean could have written?