Problema Solution
there are 40 pupils in a class.for a fund raising event, 1/8 of the pupils raised $80 each. 2/5 of the remaining pupils raised $10each and the rest raised $5 each.How many pupils raised $5 each? find the total amount raised.
Answer provided by our tutors
1/8 of the pupils raised $80 each ----> 40/8----> 5 raised $80
2/5 of the remaining pupils raised $10each------->35*2/5------>14 raised $10
the rest raised $5 each------>40-19------->21 raised $ 5 each
total amount 5*80+14*10+21*5=440+140+105= $585