Question

30 children r going on a trip
it costs £5 including lunch

Some go with their own lunch so they pay £3

The 30 children pay a total of £110
How many take their own lunch?

Answer 1

20 take their own lunch.

20*3=60
5*10=50
60+50=110

Answer 2

Thx

Answer 3

trial and error

Answer 4

20 take ther own

Answer 5

I had it before but I forgot

Answer 6

I didn't use trial and error. I guessed right the first time. It was just luck though.

Answer 7

lucky it was trial and error when I did it though ;)