Question

12. A family of 6 people have enough stock of grain to last for 40 days. Due to the arrival of some
relatives, the food was consumed in 30 days. How many guests joined the family​

Answer 1

Answer:

I think u have to do this in ratio form

Step-by-step explanation:

people. days

6. 40

30. ?

I think this may help u alot

Answer 2

Answer: 2 guests

Step-by-step explanation:

It's a cross-multiplication: a/b = c/d ; ad = bc or a= (bc)/d

40/6 = 30/x

6 × 40 = 30 × (guests + family members)

(guests + family members) = (6×40)/30

(guests + family members) = 8

We already know in the family there are 6 people, so 8 - 6 = 2 guests