percentages Model Questions & Answers, Practice Test for ibps clerk prelims 2023
ibps clerk prelims 2023 SYLLABUS WISE SUBJECTS MCQs
Ratio & Proportion
Percentages
Profit & Loss
Time & Work
Time & Distance
Simple Interest & Compound Interest
Mensuration: Area & Volumes
Algebraic Expressions
Trigonometric Ratios & Identity
Linear Equations
Quadratic Equations
Logarithm
71% of a number is more than its 46% by 120. What is 30% of that number?
Answer: (e)
(71 – 46)% of x = 120
25% of x = 120
$x = 120 × 100/25 = 480$
30% of 480 = 144
$5/9$ th part of the population in a village are males. If 30% of the males are married, the percentage of unmarried females in the total population is
Answer: (c)
Male Population = $5/9$
Females population = $4/9$
Married males = $30/100 × 5/9 = 1/6$
Married Female = $1/6$
Part unmarried female = $4/9 - 1/6 = 5/18$
∴ = $5/18 × 100$
∴ = $27{7}/9%.$
If x% of 500 = y% of 300 and x% of y% of 200 = 60, then x = ?
Answer: (a)
$500 × x/100 = 300 × y/100$
⇒ 5x = 3y
⇒ $y = {5x}/3$ .... (i)
⇒ ${xy × 200}/{100 × 100} = 60$
⇒ xy = 3000
⇒ $x × {5x}/3 = 3000$ [∵ $y = {5x}/3$]
⇒ $5x^2 = 3000 × 3$
⇒ $x^2 = {3000 × 3}/5$
⇒ $x^2$ = 1800
⇒ $x = √{1800} = √{2 × 3 × 3 × 10 × 10}$
$x = 30√{2}$
Mr Giridhar spends 50% of his monthly income on household items and out of the remaining he spends 50% on transport, 25% on entertainment, 10% on sports and the remaining amount of Rs. 900 is saved. What is Mr Giridhar's monthly income?
Answer: (a)
Let total monthly income of Mr. Giridhar be Rs. x.
According to question,
$x × 50/100 × 15/100$ = 900
x = Rs. 12000
Hence, monthly income of Mr. Giridhar = Rs. 12000.
The difference between the value of a number increased by 25% and the value of the original number decreased by 30% is 22. What is the original number ?
Answer: (c)
Work with option, $(5/4)x - (7/10)x$ = 22
Only x = 40 fulfil the above equation.
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