Well done to all those who attempted last week’s challenge, with Demi, Megan and Andie earning 5HPs each!
Now time for this week’s maths challenge…
At the dance competition people had to dance in different groups of people.
When they danced in couples, one person was left over.
When they danced in threes, one person was left over.
When they dance in fours, one person was left over.
When they danced in fives, one person was left.
HOW MANY PEOPLE WERE AT THE DANCE?
Leave a comment below with your answer!
(If you are from another school we would love it if you had a go too 🙂 )
27
2+3+4+5=14 14-1-1-1-1=10
Hi I think that the anser is 31 because ther will be 15 groups/couples and there will be 1 left over.If you do it i 3’s there will be 1 left over,if you do it in 4’s there will be 1 left over and if you do it in 5’s there will be 1 left over either way.
I think it is 31
14+14+4=32
10
13 people dancing
Nicholas – that does not work because if 27 people danced in threes nobody would be left over! Try again.
Kasha if 32 people are dancing in couples nobody is left over! Try again.
Megan and Jaden – if 31 people danced in 4s there would be 7 groups with 3 people left over.. try again!
Fidele if there are 13 people dancing in fives 3 people will be left out.
Patient if 10 people are dancing in pairs none will be left over.
I WILL KEEP THIS CHALLENGE UP UNTIL SOMEBODY GETS IT CORRECT. 🙂
18
Patient- if there are 18 people are they dance in 3 theres will be 6 groups with noone left over. Try again 🙂
14
you are one of the best at your maths and you are great.
Hi I think that the anser is 31 because ther will be 15 groups/couples and there will be 1 left over.If you do it i 3′s there will be 1 left over,if you do it in 4′s there will be 1 left over and if you do it in 5′s there will be 1 left over either way.
Hi Joseph – welcome to our blog. 31 is a good guess however if people danced in fours there would be seven groups with 3 people left over (7 x 4 = 28, +3 = 31). Have another go!
Patient, if 14 people danced in pairs there would be none left over – have another ago! I really like your perseverance too, have 1HP.
Is the answer 31 or 14
18
121
41 people
61
Well done Tom and Chloe – both of your answers are correct so you can have 5HPs!
If there were 61 people at the dance, when they danced in couples there would be 1 person left over (2 x 30 = 60), when they danced in threes there would be 1 person left over (20 x 3 = 60), when they danced in fours there would be 1 person left over (4 x 15 = 60) and when they danced in 5s there would be 1 person left over (12 x 5 = 60). This also works with 121 people at the dance.
It is 11