Question

8 girls can fold 5 paper cranes in 6 minutes. how long will it take 36 girls to fold 120 paper cranes?

Answer 1

Answer:

864 minutes

Step-by-step explanation:

8 girls can fold 5 paper cranes in minutes = 6

1 girls can fold 5 paper cranes in minutes = $\frac{6}{8}$

1 girls can fold 1 paper cranes in minutes = $\frac{\frac{6}{8}}{5}$

                                                                    = $\frac{6}{30}$

36 girls can fold 1 paper cranes in minutes  = $\frac{6}{30} \times 36$

36 girls can fold 120 paper cranes in minutes  = $\frac{6}{30} \times 36 \times 120$

36 girls can fold 120 paper cranes in minutes  = $864$

Hence 36 girls can fold 120 paper cranes in 864 minutes

Answer 2

Given,

8 girls can fold 5 paper cranes in 6 minutes.

To find,

The time taken by 36 girls to fold 120 cranes.

Solution,

We can easily solve this mathematical problem by using the normal arithmetic method. The rest of the calculations are given below.

8 girls fold 5 cranes in = 6 minutes

1 girl folds 5 cranes in = 6×8 minutes

1 girl folds 1 crane in = 48/5 minutes

36 girl fold 1 crane in = 48/(5×36) minutes

36 girl fold 120 cranes in = (48×120)/(5×36) = 5760/180 = 32 minutes

(The division and multiplication are done according to the direct or inverse proportion.)

Hence, 36 girls will fold 120 paper cranes in 32 minutes.