30 children are going on a school trip
It costs £5 including lunch
Some children take their own packed lunch
They only pay £3
The 30 children pay a total of £110
How many children are taking their own packed lunch

Respuesta :

30 × 5 = 150

150 - 110 = 40

40 ÷ 2 = 20

So 20 kids brought their own lunch

Hope this helped. Have a great day!