Question

hii friend its urgent plzz answer me fast​

Answer 1

a) 8kg

b) i think the answer is 15 days

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Answer 2

7.

kg  amount  (it is in direct proportion)

5     400

x     640

400x = 640 × 5

x = 640 × 5/400

x = 640/80

x = 8

so for with rs.640 he can buy 8 kg of rice

8. men  days (it is in inverse proportion)

   36      20

   48       y

y = 36 × 20/48

y = 720/48

y = 15

so 48 men can do the work in 15 days

hope it helps

have a great day!