Question

9. A
9. A family of 12 buys 30 kg of sugar which lasts for 20 days. If they buy
40 kg and it lasts for only 8 days, find the increase in the number of family
members.​

Answer 1

Answer:

28 members increased

Step-by-step explanation:

given,

A family of 12 buys 30 kg of sugar which lasts for 20 days.

we know,

work=men*days*hours

30 kg=12 family*20 days---------(1)

If they buy

40 kg and it lasts for only 8 days, find the increase in the number of family

members.​

let x be members increased total members are(12+x)

40 kg=(12+x)*8 days -------------(1)

by dividing Eq(1) by (2)

30/40=12*20/(12+x)*8

x=28 members