aptitude percentage mcq pdf Model Questions & Answers, Practice Test for ibps rrb so officer sclae 2 3 single exam 2024
ibps rrb so officer sclae 2 3 single exam 2024 SYLLABUS WISE SUBJECTS MCQs
Number System
Lcm & Hcf
Ratio & Proportion
Percentage
Time & Work
Mensuration
Advance Math
Trigonometric Ratios & Identities
Average
Profit & Loss
7% of the total quantity of wheat is lost in grinding when a country has to import 6 million tonnes, but when only 7$3/4$ % is lost, it can import 3 million tonnes. Find the quantity of wheat grown in the country.
Answer: (b)
Let x be the total grown quantity of wheat.
∴ According to the question
(7% of x ) + 6 = $(31/4% of x)$ + 3
⇒ ${7x}/100 + 6 = {31x}/400 + 3$
3 = $({31 - 28}/400)x$
⇒ $1200/3$ = x
⇒ 400 million tonnes wheat grown.
If the price of sugar is increased by 7%, then by how much per cent should a housewife reduce her consumption of sugar, to have no extra expenditure?
Answer: (b)
% reduction in consumption
= $\text"% change in price"/{100 + % \text"change in price"} × 100$
= $7/{100 + 7} % = 7/107%$
In a competitive examination in State A, 6% candidates got selected from the total appeared candidates. State B had an equal number of candidates appeared and 7% candidates got selected with 80 more candidates got selected than A. What was the number of candidates appeared from each State?
Answer: (a)
Let the number of candidates appeared from each state be x.
Then, 7% of x – 6% of x = 80
⇒ 1% of x = 80
⇒ x = 80 × 100 = 8000.
Aman’s expense is 30% more than Vimal’s expense and Vimal’s expense is 10% less than Raman’s expense. If the sum of their expenses is Rs. 6447, then what would be the Aman’s expense ?
Answer: (b)
Suppose the expense of Vimal = Rs. 100
Expense of Aman = Rs. 130
Expense of Raman = $100/90 × 100 = Rs. 1000/9$
∴ Ratio of the expense of Vimal, Aman and Raman
= 100 : 130 : $1000/9$ = 90 : 117 : 100
So, the expense of Aman
= $117/{90 + 117 + 100} × 6447 = 117/307 × 6447$ = Rs. 2457
? % of 35568 ÷ 650 = 456
Answer: (e)
$?/100 × 35568/650 = 456$
${456 × 100 × 650}/35568$ ≅ 903
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