model 3 fraction of numbers Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 6 EXERCISES
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Basic Number System Aptitude Questions Practice Test with PDF »
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Number System on Divisibility Multiple Add Subtract Live Test »
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Top 255+ Number System Fraction Aptitude Questions Answers »
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Top +299 Aptitude Number System (Find Unit Place) Mcq Quiz »
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Top Number System Aptitude (Smallest Largest Fraction) MCQ »
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199+ Aptitude Number System: Consecutive Numbers MCQ Quiz »
The following question based on number system topic of quantitative aptitude
(a) 440
(b) 400
(c) 360
(d) 320
The correct answers to the above question in:
Answer: (c)
Let the number be x.
According to the question
$x/9 - x/10$ = 4
${10x – 9x}/90$ = 4
x = 90 × 4 = 360
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Read more fractional numbers Based Quantitative Aptitude Questions and Answers
Question : 1
How many $1/6$ of together make 41 $2/3$ ?
a) 350
b) 250
c) 150
d) 125
Answer »Answer: (b)
Required answer = ${125/3}/{1/6} = 125/3× 6 = 250$
Question : 2
What is two-third of half of 369?
a) 271$3/4$
b) 246$3/8$
c) 246
d) 123
Answer »Answer: (d)
? = 369 × $1/2 × 2/3$= 123
Question : 3
A candidate in an examination was asked to find $5/14$ of a certain number. By mistake he found $5/4$ of it. Thus, his answer was 25 more than the correct answer. The number was :
a) 140
b) 84
c) 56
d) 28
Answer »Answer: (d)
Let the required number be x.
As given,
$x × 5/4$ - $x × 5/14$ = 25
$5x(1/4 – 1/14)$ = 25
$5x({7 – 2}/28)$ = 25⇒ $5x × 5/28$ = 25
x = ${25×28}/{5×5}$ = 28
Question : 4
If $4/5$ of an estate be worth Rs.16800, then the value of $3/7$ of it is—
a) Rs.21000
b) Rs.72000
c) Rs.9000
d) Rs.90000
Answer »Answer: (c)
Let the value of estate be Rs.x
According to the question
$4/5$ of x = 16800
x = ${16800 × 5}/4$ = Rs.21000
$3/7$ of the value = 21000 × $3/7$ = 3000 × 3 = Rs.9000
Question : 5
The value of ${1/15 + 1/35 + 1/63 + 1/99 + 1/143}$ is
a) $7/39$
b) $2/39$
c) $4/39$
d) $5/39$
Answer »Answer: (d)
$1/15 + 1/35 + 1/63 + 1/99 + 1/143$
= $1/{3×5}+1/{5×7}+1/{7×9}+1/{9×11}+1/{11×13} $
=$1/2(1/3 - 1/5+1/5 - 1/7+1/7 - 1/9+1/9 - 1/11+1/11 - 1/13)$
=$1/2(1/3 - 1/13)$
= $1/2({13 - 3}/39) = 5/39$
Question : 6
The number 0.121212.... in the form $\text"p"/\text"q"$ is equal to
a) $2/33$
b) $4/33$
c) $2/11$
d) $4/11$
Answer »Answer: (b)
0.121212 .... = 0.$\ov{12}$ = $12/99 = 4/33$
GET number system PRACTICE TEST EXERCISES
model 1 basic number system
model 2 divisibility, multiples, add and subtract based number system
model 3 fraction of numbers
model 4 finding unit place of a number
model 5 smallest and largest fraction/numbers
model 6 operations of consecutive numbers (odd, even, square, etc.)
number system Shortcuts and Techniques with Examples
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model 1 basic number system
Defination & Shortcuts … -
model 2 divisibility, multiples, add and subtract based number system
Defination & Shortcuts … -
model 3 fraction of numbers
Defination & Shortcuts … -
model 4 finding unit place of a number
Defination & Shortcuts … -
model 5 smallest and largest fraction/numbers
Defination & Shortcuts … -
model 6 operations of consecutive numbers (odd, even, square, etc.)
Defination & Shortcuts …
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