Question

a group of 3 friends staying together ,consume 54 kg of wheat every month some more friends join the group and they find the same amount of wheat lasts for 18 days .How many new members are there in this group now

Answer 1

6 members Joined In That Group

Explanation:- No.of Friends And No.of Days are in inverse proportion..
Formula:- X1×Y1=X2×Y2
Here, 3 is X1 and 54 is Y1 and 18 is Y2

Therefore, 3×54=X×18

X=3×54÷18
X=6

Therefore, The No.of Friends Joined in that Group is 6 members..

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Answer 2

Answer:

There will be 2 more members.

Step-by-step explanation:

First of all you have to find out if it is direct or inverse....

So here in this case if the members are more then the food will last for less days so it will be an inverse proportion.

Then as it is inverse, k (constant) = x into y which will be 90.

As we alredy know that k=xy

then x = k/y

So, k/y = 90/18

x = 5

So we have the members to complete the food in 18 days.

As they have asked us how many more members, we will have to subtract 3 from 5 = 2

Therefore, 2 more members are there in the group now....

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