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Numerical Ability
Ratio and Proportion
Q. A certain quantity of rice is spent daily for 30 students in a hostel. One day some students were absent as a result, the quantity of rice has been spent in the ratio of 6 : 5. How many students were present on that day?
Option
(a)24
(b)20
(c)15
(d)25
Read Solution (Total 16)
-
- given that total students are 30,
lets take absent students are x , so 30-x are the present students
30/30-x=6/5 =====> x=5, 30-x=30-5==> 25
so ans:- d - 10 years agoHelpfull: Yes(23) No(0)
- 30/x = 6/5
then x=25
so ans is 'd''25' - 10 years agoHelpfull: Yes(9) No(0)
- let us take absent students be x
w.k.t total students = 30
so number of present students = 30-x
from the qstn 30/(30-x) = 6/5
==> x= 5
so 30-5= 25 students were present on that day.
ans is d(25) - 10 years agoHelpfull: Yes(5) No(0)
- given total students=30
let absent students=X
so students present on that day=30-x
given when there where 30 students quantity of rice spent=6
and for 30-x students quantity of rice spent =5
30-x=5 ,x=30-5 =>x=25. - 10 years agoHelpfull: Yes(2) No(0)
- 30/x=6/5
then x=25
so ans (d) is correct. - 10 years agoHelpfull: Yes(1) No(0)
- simply assume absent students=x then,
30/x=6:5
=25(ans)
- 10 years agoHelpfull: Yes(1) No(0)
- 30/30-x=6/5
6x=30
x=5
30-x=30-5=25 - 7 years agoHelpfull: Yes(1) No(0)
- let y no of student were absent
then
30:30-y::6:5
solving this we get y=5 so...30-5=25 ans - 10 years agoHelpfull: Yes(0) No(0)
- Just check options......
Only option D is giving the ratio of 5:6 w.r.t 30 - 9 years agoHelpfull: Yes(0) No(0)
- 6/5=30/x
x=25 - 7 years agoHelpfull: Yes(0) No(0)
- 30/30-x=5/6=>x=5
30-x=>25 - 6 years agoHelpfull: Yes(0) No(0)
- 30/30-x=6/5
i.e x = 5
so 30-5=25 - 5 years agoHelpfull: Yes(0) No(0)
- given that total student are 30
30/30-x=65 - 4 years agoHelpfull: Yes(0) No(0)
- let us take absent students be x
Given that the total no.of students are=30
30/x=6/5
150/x=6
150/6=x
so,x=25
Ans:-"d" - 4 years agoHelpfull: Yes(0) No(0)
- The answer is 25
- 4 years agoHelpfull: Yes(0) No(0)
- it is option d
lets assume absent students as x
so
30-x are present
30/30-x=6/5
6x=30
x=5
30-5= 25 - 3 years agoHelpfull: Yes(0) No(0)
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