Question : The table given below shows the marks obtained by boys and girls in different subjects.
Subjects | Boys | Girls |
A | 60 | 120 |
B | 80 | 100 |
C | 140 | 40 |
D | 120 | 60 |
E | 100 | 40 |
L1 = The difference between marks obtained by boys and girls in all subjects.
L2 = The value of the average of marks obtained by boys in C, D, and E.
What is the value of (L1 – L2)?
Option 1: 40
Option 2: 20
Option 3: 10
Option 4: 50
Correct Answer: 20
Solution :
The difference between marks obtained by boys and girls in all subjects, L1 = (60 + 80 + 140 + 120 + 100) – (120 + 100 + 40 + 60 + 40)
⇒ L1 = 500 – 360 = 140
$\text{Average}=\frac{\text{Sum of all the values}}{\text{Number of all the values}}$
The value of the average of marks obtained by boys in C, D, and E
= L2 = $\frac{140+120+100}{3}= \frac{360}{3}$ = 120
The value of L1 – L2 = 140 – 120 = 20
Hence, the correct answer is 20.
Related Questions
Question : The table given below shows the marks obtained by five students in an examination.
Students | Marks |
A | 400 |
B | 300 |
C | 150 |
D | 350 |
E | 200 |
What is the ratio of marks obtained by D to the marks obtained by E?
Option 1: 5 : 3
Option 2: 7 : 4
Option 3: 5 : 4
Option 4: 7 : 3
Question : The table given below shows the production of television and fridges by different companies.
Companies | Television | Fridge |
A | 60 | 80 |
B | 50 | 30 |
C | 40 | 20 |
D | 30 | 50 |
E | 70 | 35 |
J1 = The value of average production of fridges by D and E.
J2 = The total production of television and fridges by all companies.
What is the value of (J2 – J1)?
Option 1: 456.2
Option 2: 314.5
Option 3: 465
Option 4: 422.5
Question : The table given below shows the marked price and the value of the discount of five different articles.
Article | Marked price | Discount |
A | Rs. 350 | Rs. 70 |
B | Rs. 650 | Rs. 75 |
C | Rs. 450 | Rs. 66 |
D | Rs. 750 | Rs. 72 |
E | Rs. 850 | Rs. 80 |
Selling price = Marked price – Discount
L1 = The value of the average discount of articles C and D.
L2 = Sum of the selling price of all articles.
What is the value of L1 + L2?
Option 1: 2756
Option 2: 2687
Option 3: 2816
Option 4: 2618
Question : The table given below shows the number of students in 6 different schools.
Schools | Students |
A | 120 |
B | 60 |
C | 70 |
D | 80 |
E | 30 |
F | 50 |
The number of students in school A is what percentage of the number of students in school F?
Option 1: 41.66%
Option 2: 200%
Option 3: 240%
Option 4: 120%
Question : The table shows the number of boys and girls in the schools. Which school has the minimum number of students?
School | Number of boys | Number of girls |
1 | 44 | 56 |
2 | 34 | 45 |
3 | 47 | 34 |
4 | 95 | 54 |
5 | 45 | 32 |
Option 1: 2
Option 2: 3
Option 3: 5
Option 4: 1
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