Question

plz tell the question no 9​

Answer 1

Answer:

360packs in 40min

in 1min =360/40

9 pcs

then in 4 hr

60*4*9

2160

1pcs in 40/360min

1200pcs=40/360*1200

400/3min

Answer 2

Step-by-step explanation:

1.

given 360 packets in ---- 40/60hr

360pac -----2/3hr

so packets in 4hr

360pac -----2/3hr

x pac ------4hr

(360 x 4 ×3)/2

360 ×6

2160 pacs

2.

1200 pac --- xhr

360pac -----2/3hr

(1200 ×2/3 )/360

800/360

80/36

40/18

20/9hr