Read the information and answer the following question given below.
The information is about the staffs (lab assistant and professor) in three colleges.
For A – total lab assistant and total professor is 82.
For B – total lab assistant is 4 more than total lab assistant in C.
For C – total lab assistant is 6 less than total professor
Note – total professor in A is 44 less than total lab assistant in B.
Total staffs in C is 24 more than that in A and total professor in al the college is 102.
Find the ratio of total professors in B to total lab assistant in A.
Correct Answer :
1:2
Solution :
The correct option is 1:2.
Let us define the variables for the staff members in colleges A, B, and C:
Let , , and represent the number of lab assistants in colleges A, B, and C respectively.
Let , , and represent the number of professors in colleges A, B, and C respectively.
Step 1: Find the total number of staff in College A and College C
We are given that the total number of staff (lab assistants + professors) in college A is 82:
The total staff in C is 24 more than that in A:
Step 2: Find the staff details for College C
For College C, the number of lab assistants is 6 less than the number of professors:
Substitute this into the total staff equation for College C:
Now, find the number of lab assistants in College C:
Step 3: Find the number of lab assistants in College B
The number of lab assistants in College B is 4 more than in C:
Step 4: Find the staff details for College A
The number of professors in College A is 44 less than the number of lab assistants in B:
Using the total staff of College A to find its lab assistants:
Step 5: Find the number of professors in College B
The total number of professors in all three colleges is 102:
Substitute the known values:
Step 6: Calculate the required ratio
We need to find the ratio of total professors in B to total lab assistants in A:
Thus, the required ratio is 1:2.
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