Question

A group 25 of students in a hostel have provision for 20 days.If 5 students left the hostel,for how long the provision last?​

Answer 1

$\sf{\huge{\underline{\green{Given :-}}}}$

• A group 25 of students in a hostel have provision for 20 days.

20

• 5 students left the hostel .

$\sf{\huge{\underline{\green{To\:Find :-}}}}$

• The provision last for how much times.

$\sf{\huge{\underline{\green{Answer :-}}}}$

According to the question,

A group 25 of students in a hostel have provision for 20 days.

5 students left the hostel .

Total number of students left in the hostel

= 25 -5

= 20

Using unitary method method,

25 student in a hostel have provision for = 20 days

For 1 student has provision for = 20/25 days

= 4/5 days

For 20 student has provision for = 4/5 × 20

➝ 4 × 4

➝ 16 days

The provision last for 16 days.