model 8 find monthly income Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 9 EXERCISES
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Basic Average Questions Practice Test, Shortcuts, Tricks, PDF »
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New Average Aptitude MCQ Average of Consecutive Numbers »
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Top 99+ Average Aptitude: Twice, One Third of Numbers MCQ »
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New +99 Average Aptitude MCQ Find nth Average of Numbers »
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99+ Average Aptitude Find New Average from Error MCQ Test »
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Top 99+ Aptitude MCQ Test on Average With Excluded Number »
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Top 99+ Aptitude Average on Ages & Weights MCQ Test Quiz »
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Top Aptitude Average MCQ Find Monthly Income for Average »
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Top 149+ Aptitude Average on Cricket & Exam MCQ Test Quiz »
The following question based on average topic of quantitative aptitude
(a) Rs.425
(b) Rs.415
(c) Rs.310
(d) Rs.300
The correct answers to the above question in:
Answer: (c)
Total daily income of A, B and C = 3 × 450 =Rs.1350
Total daily income of A and B = 2 × 400 =Rs.800
Total daily income of B and C = 2 × 430 =Rs.860
∴ B’s daily income =Rs.(800 + 860 – 1350) =Rs.310
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Read more finding monthly income Based Quantitative Aptitude Questions and Answers
Question : 1
The average salary of all workers in a workshop is Rs.12000. The average salary of 7 technicians is Rs.15000 and the average salary of the rest is Rs. 9000. The total number of workers in the workshop is :
a) 15
b) 14
c) 13
d) 12
Answer »Answer: (b)
Total number of workers in the factory = x (let)
Number of technicians = 7
Remaining workers = x – 7
According to the question,
${7×15000+(x-7)×9000}/x$ = 12000
⇒ 7 × 15 + 9x – 63 = 12x
⇒ 105 – 63 = 12x – 9x
⇒ 3x = 42
⇒ x = $42/3$ = 14
Question : 2
The average salary, per head, of all the workers of an institution is Rs.60. The average salary of 12 officers is Rs.400; the average salary, per head, of the rest is Rs.56. The total number of workers in the institution is
a) 1032
b) 1020
c) 1035
d) 1030
Answer »Answer: (a)
Number of other workers except officers = x
∴ 12 × 400 + x × 56 = (x + 12) × 60
⇒ 4800 + 56x = 60x + 720
⇒ 60x – 56x = 4800 – 720
⇒ 4x = 4080
⇒ x = $4080/4$ = 1020
∴ Total number of workers = 1020 + 12 = 1032
Question : 3
The average monthly income of A and B is Rs.14000, that of B and C is Rs.15600 and A and C is Rs.14400. The monthly income of C is
a) Rs.15500
b) Rs.14000
c) Rs.15000
d) Rs.16000
Answer »Answer: (d)
A + B =Rs.28,000 ...(i)
B + C = Rs.31,200 ...(ii)
C + A = Rs. 28,800 ...(iii)
Adding,
2(A + B + C) = 88000
⇒ A + B + C = 44000
From equation (i),
28000 + C = 44000
⇒ C = 44000 – 28000 = Rs.16000
Question : 4
The average daily income of 7 men, 11 women and 2 boys is Rs. 257.50. If the average daily income of the men is Rs.10 more than that of women and the average daily income of the women is Rs.10 more than that of boys, the average daily income of a man is
a) Rs. 257
b) Rs. 265
c) Rs. 250
d) Rs. 277.5
Answer »Answer: (b)
Average daily salary :
Men ⇒ Rs. x (let).
Women ⇒ Rs. (x – 10)
Boys ⇒ Rs. (x – 20)
According to the question,
7x + 11 (x – 10) + 2 (x – 20) = 20 × 257.5
⇒ 7x + 11x – 110 + 2x – 40 = 5150
⇒ 20x – 150 = 5150
⇒ 20x = 5150 + 150 = 5300
⇒ x = $5300/20$ = Rs. 265
GET average PRACTICE TEST EXERCISES
model 1 basic average questions
model 2 average of consecutive numbers
model 3 twice, thrice, one third etc. of numbers
model 4 find nth average from 1st & last number
model 5 find new average from error
model 6 find average of excluded number
model 7 average on ages/weight
model 8 find monthly income
model 9 average on cricket/exam
average Shortcuts and Techniques with Examples
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model 1 basic average questions
Defination & Shortcuts … -
model 2 average of consecutive numbers
Defination & Shortcuts … -
model 3 twice, thrice, one third etc. of numbers
Defination & Shortcuts … -
model 4 find nth average from 1st & last number
Defination & Shortcuts … -
model 5 find new average from error
Defination & Shortcuts … -
model 6 find average of excluded number
Defination & Shortcuts … -
model 7 average on ages/weight
Defination & Shortcuts … -
model 8 find monthly income
Defination & Shortcuts … -
model 9 average on cricket/exam
Defination & Shortcuts …
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