Related Questions

In a student dormitory there was enough food to feed 300 students for 15 days. Because of admission of some new students, the food only lasted for 10 days. How many new students were admitted to the dormitory?
A 100
B 125
C 150
D 175
In a student dormitory there was enough food to feed 300 students for 15 days. Because of admission of some new students , the food only lasted for 10 days. How many new students were admitted to the dormitory ?
A 100
B 125
C 150
D 175
The food stock in a cantonment having 1200 soldiers is enough to last for 30 days after 10 days another 300 new soldiers joined the same cantonment . For many more days will the remaining food stock last?
A 60
B 20
C 16
D 15
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior's name is placed in the lottery 3 times, each junior's name, 2 times, and each sophomore's, 1 time. What is the probability that a senior's name will be chosen?
A 1/8
B 2/9
C 2/7
D 3/8
The average marks obtained by a group of 16 students was 20. One student left the group as a result of which the average of the remaining students rose to 21. But another student joined, as a result of which the average marks of the group dropped a bit and became 20.5. What was the average marks obtained by the student who left and the one who joined?
A 10
B 11
C 8
D 9
A family had provision of food for 15 days. After 5 days 8 guests came and the provision lasted 6 days. How many are the members of the family?
A 10
B 11
C 12
D 13
The average weight of 39 students is 30 kg. By the admission of a new student, the average comes down to 29.8 kg. Find the weigth of the new student.
A 22 kg
B 22.6 kg
C 31 kg
D 29.8 kg
The number of students in each section of a school is 24. After admitting new students, three new sections were started. Now the total number of sections is 16 and there are 21 students in each section. How many new students were admitted ?
A 24
B 14
C 48
D 44
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
A Greater degree of separation with a fixed number of trays
B Increased reboiler load
C Increased reflux ratio
D None of these

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