Question

relands school sent x students to revision day

Answer 1

Answer:

Hi

here is the solution.Given

Number of Students of Redlands school= x

Number of Students of St Samuels School = 2*x      (twice of Redlands school)

Number of students of Francis Long School = x-7     (7 fewer than redlands school)

Total number of students = x + 2x + (x-7) = 4x-7

Each student paid =£15

total paid = £15 * (4x-7) which is equal to £1155

so we get  4x -7 = 1155/15

4x-7=77

4x= 77+ 7 =84

x = 84/4 = 21

Number of students of Redlands school = x = 21

Number of Students of St Samuels School = 2*x  = 2*21 = 42

Number of students of Francis Long School = x-7 = 21 -7 =14