Question

6. There are 150 students in a hostel. Food provision for them is for 20 days. How long these provisions will last, if 50 more students join the group? 3 marks​

Answer 1

Answer:

food provision for 150 students for 20 days

food provision for (150+50)=200 students is

for 20×150/200 days

=15 days

so,15 days will last if 50 more students join the

group

Answer 2

Given

we have given total number of students which is 150

food provision is for 20 days

To Find

we have to find number of days of food provision last if 50 more students join the group.

$\sf\huge\bold{\underline{\underline{{Solution}}}}$

For 150 students ,food provision is for 20 days

If 50 more students join the group then the total number of students= 150+50=200 students

Let the food lasts for x days if 50 more students join the group

From above statement our table look like

Number of students ▏150 ▏200 ▏

Number of days$\:\:\:\:\:\:\:\:\:$ ▏20 ▏x ▏

If we increase the number of students the number of days of food provision will decrease

Now ,

=>150×20=200×x

=>3000=200x

=>200x=3000

=>x=3000÷200

=>x= 15

hence,the food provision will last for 15 days if 50 more students join the group