Question

Seats of physics, Chemistry and Mathematics in a school are in the ratio 4: 5: 6. There is a
proposal to increase these seats by 75 in each department. What were the total number of seats in the school finally?​

Answer 1

Given : Seats of physics, Chemistry and Mathematics in a school are in the ratio 4: 5: 6

There is a proposal to increase these seats by 75 in each department

To Find : What were the total number of seats in the school finally?​

a) 600

b) 750

c) 900

d) Cannot be determined

Solution :

Seats of physics, Chemistry and Mathematics are in the ratio 4: 5: 6.

4K , 5K & 6K

Total = 4K + 5K + 6K = 15K

Seats increased in each department = 75

Seats increased = 75 + 75 + 75 = 225

Total Seats = 15K + 225

= 15(K  + 15)

Number of seats can be 600 if K = 25

Number of seats can be 750 if K = 35

Number of seats can be 900 if K = 45

Value Depend upon value of K

Hence can not determine

Cannot be determined is correct answer.

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Seats of physics, Chemistry and

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