Question Details

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 total staff in B.

Options

A

90

B

80

C

60

D

65

Show Answer

Correct Answer :

Option A

90

90

Solution :

Correct Answer: Option 90

Let us break down the given information step-by-step to find the total staff in College B.

Let the number of lab assistants and professors in colleges A, B, and C be represented as follows:
- College A: LA (lab assistants) and PA (professors)
- College B: LB (lab assistants) and PB (professors)
- College C: LC (lab assistants) and PC (professors)

Step 1: Find the total staff in College C.
We are given that the total staff (lab assistants + professors) in College A is 82:
SA=LA+PA=82
The total staff in College C is 24 more than that in College A:
SC=SA+24=82+24=106

Step 2: Find the number of lab assistants and professors in College C.
We know that in College C, the total number of lab assistants is 6 less than the total number of professors:
LC=PC-6 (or PC=LC+6)
Using the total staff equation for College C:
LC+PC=106
Substitute PC in the equation:
LC+(LC+6)=106
2LC+6=106
2LC=100
LC=50
Now, find the number of professors in College C:
PC=50+6=56

Step 3: Find the number of lab assistants in College B and professors in College A.
The number of lab assistants in B is 4 more than that in C:
LB=LC+4=50+4=54
The number of professors in A is 44 less than the lab assistants in B:
PA=LB-44=54-44=10

Step 4: Find the number of professors in College B.
The total number of professors in all three colleges is 102:
PA+PB+PC=102
Substitute the values of PA and PC:
10+PB+56=102
66+PB=102
PB=102-66=36

Step 5: Calculate the total staff in College B.
The total staff in College B is the sum of its lab assistants and professors:
SB=LB+PB=54+36=90

Thus, the total staff in B is 90.

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