Quantitative Aptitude - Arithmetic Ability Questions

Q:

Each question contains Quantity I and Quantity II. Read the contents carefully and answer your questions accordingly.

Quantity I: there are three numbers in the ratio 5:6:10. The sum of the largest and the smallest numbers is 126 more than the other number. Find the largest number?

Quantity II: 12% of first number is equal to 25 % second number. The difference of these two numbers is 78. Then find the largest number?

A) Quantity I > Quantity I B) Quantity I ≥ Quantity II
C) Quantity I < Quantity II D) Quantity I < Quantity II
 
Answer & Explanation Answer: C) Quantity I < Quantity II

Explanation:

Quantity I= Let the three numbers will be 5x, 6x and 10x respectively

ATQ

10x+5x−6x=126 

9x=126 X=14

So largest number =10x=10×14=140

Quantity II=let x and y are two numbers

ATQ 

12% of x=25%of y And their difference is 78 

So first no.=150 2nd no.=72

Hence Quantity I < Quantity II

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Filed Under: Ratios and Proportions

0 2462
Q:

A uniformly moving train of length 480 m takes 3 minutes to completely cross a platform. If the same train, with the same speed crosses a pole completely in 30 sec, then the length of the platform is -

A) 1 km B) 600 m
C) 4.8 km D) 1.2 km
 
Answer & Explanation Answer:

Explanation:

Let length of platform be ‘y’metres.

Then, at the platform,Distance travelled = y + (length of train) = (y + 480)m

Then, Speed of train = (y + 480)m / (3x60) sec = (y+480)/180 ...(1)

Also, at the pole,Distance travelled = length of train = 480m

Then, Speed of train = 480m / 30sec = 16 m/s ...(2)

Equating eq.(1) & eq.(2), we get,

(y+480)/180 = 16(y+480) = 16 x 180 = 2880

y = 2880 –480 = 2400m or 2.4 km long platform.

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Filed Under: Problems on Trains
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

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Q:

A wholesaler sold a water purifier at a loss of 40%. If the selling price has been increased by Rs. 125, then wholesaler will get the profit of 10%. What was the cost price of the purifier?

A) Rs. 250 B) Rs. 225
C) Rs. 275 D) Rs. 300
 
Answer & Explanation Answer: B) Rs. 225

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

5 2462
Q:

In an MBA selection process, the ratio of selected to unselected was 11:2. If 40 less had applied and 20 less selected, the ratio of selected to unselected would have been 10:1. How many candidates had applied for the process?

A) 220 B) 260
C) 300 D) 340
 
Answer & Explanation Answer: B) 260

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

7 2458
Q:

Rajesh sells a machine for Rs 57 lakhs at a loss. Had he sold it for Rs 67 lakh, his gain would have been 7 times the former loss. Find the cost price of the machine.

A) Rs 58.25 lakhs B) Rs 65.75 lakhs
C) Rs 75.14 lakhs D) Rs 50.75 lakhs
 
Answer & Explanation Answer: A) Rs 58.25 lakhs

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

2 2457
Q:

The interest earned on Rs. 1600 at the rate of 5% S>I per annum for 6 yrs would be:

A) 2080 B) 450
C) 496 D) 480
 
Answer & Explanation Answer: D) 480

Explanation:
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Filed Under: Simple Interest
Exam Prep: Bank Exams

2 2457
Q:

Ashok can row upstream at 8 kmph and downstream at 12kmph.What is the speed of the stream ?

A) 6 km/hr B) 3 km/hr
C) 2 km/hr D) 4.5 km/hr
 
Answer & Explanation Answer: C) 2 km/hr

Explanation:

If the speed downstream is a kmph and the speedup stream is b kmph then
Speed of the stream = 1/2 x (a–b) kmph
Speed downstream a = 12kmph
Speed upstream b = 8 kmph
Speed of the stream = 1/2 x (a–b) = 1/2 x (12–8)= 4/2 = 2 kmph

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

7 2455
Q:

The entry ticket at a fun park was increased in the ratio 7 : 9, due to which footfalls fell in the ratio 13 : 11. What is the new daily collection (in Rs), if the daily collection before the price hike was Rs 2,27,500?

A) 237500 B) 247500
C) 232500 D) 242500
 
Answer & Explanation Answer: B) 247500

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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