Question

8 girls can fold 5 paper cranes in 6 minutes. How long will it take 36 girls to fold 120 paper cranes? State the assumption you have made.

Answer 1

AnswEr :

$\underline{\bigstar\:\textsf{Using MDH Formula :}}$

$:\implies\tt \dfrac{M_1 \times D_1 \times H_1}{W_1}=\dfrac{M_2 \times D_2 \times H_2}{W_2}\\\\\\:\implies\tt \dfrac{Girls_1 \times Time_1}{Paper\:Cranes_1}=\dfrac{Girls_2 \times Time_2}{Paper\:Cranes_2}\\\\\\:\implies\tt \dfrac{8 \times 6}{5} = \dfrac{36 \times Time}{120}\\\\\\:\implies\tt \dfrac{8 \times 6 \times 120}{5 \times 36} = Time\\\\\\:\implies\tt \dfrac{8 \times 120}{5 \times 6} = Time\\\\\\:\implies\tt 8 \times 4 = Time\\\\\\:\implies \underline{ \boxed{\tt Time = 32 \:minutes}}$

⠀

$\therefore\:\underline{\textsf{36 girls will take \textbf{32 minutes} to fold 120 paper cranes}}.$

Answer 2

Answer:

=> 8*6/ 5 = 36*Time/ 120

=> 8*6 = 36*Time/ 24

=> 8 = 6*Time/ 24

=> 8 = Time/ 4

=> 8*4 = Time

=> Time = 32 minutes