Question

answer q 7;8 and 9.​

Answer 1

9) 9 rectangles

8) 7 volunteers - 13 boxes - 1/4 hrs

7 volunteers- 52 boxes - 1 hrs

x volunteers - 260 boxes - 1 hrs

52x = 7 × 260

x = 7 × 260 /52 = 35

Answer 2

7.3 can have 4 and 2

4 can be below 3 or else condition for  won't be satisfied

so 4 is above 5 and 2 is beside 3

below 5 we will have 6 and adjacent to it we will have 8

now adjacent to 8 we will have 9 and above 9 is 10 followed by 11 above 10

beside 11 we have 12 and below 12 is 13 and below 13 is 14

so the sum is 8+14=22

8.7 volunteers, 13 boxes - 1/4 hrs

OR

7 volunteers,52 boxes - 1 hrs

x volunteers, 260 boxes - 1 hrs

 52x = 7 × 260  

x = 7 × 260 /52

= 35

(I have used cross multiplication)

9.10 rectangles  (according to me)