Quantitative Aptitude - Arithmetic Ability Questions

Q:

In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?

A) 901.54 ltr B) 821.54 ltr
C) 719.64 ltr D) 823.08 ltr
 
Answer & Explanation Answer: D) 823.08 ltr

Explanation:

Amount of pure milk= a(1 –b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 –48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

1 2220
Q:

In the given figure, ABCDEF is a regular hexagon of side 12 cm. P, Q and R are the mid points of the sides AB, CD and EF respectively. What is the area (in sq.cm) of triangle PQR?

A) 27√6 B) 81√3
C) 54√3 D) 54√6
 
Answer & Explanation Answer: B) 81√3

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

2 2218
Q:

If 3x - 4 > 2 - x/3 and 3x + 5 > 4x - 5; then find the value of x?

A) 7 B) 10
C) -11 D) 1
 
Answer & Explanation Answer: A) 7

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

9 2216
Q:

Aman and Kapil starts from Delhi and Gwalior respectively towards each other at same time. They meet at Mathura and then take 196 minutes and 225 minutes respectively to reach Gwalior and Delhi. If speed of Aman is 30 km/hr, then what is the speed (in km/hr) of Kapil?

A) 28 B) 30
C) 225/7 D) 392/15
 
Answer & Explanation Answer: A) 28

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams

3 2215
Q:

Rohit walks at 17 km/hr and Ruchira cycles at 22 km/hr towards each other. What was the distance between them when they started if they meet after 44 minutes?

A) 42.9 km B) 35.8 km
C) 21.5 km D) 28.6 km
 
Answer & Explanation Answer: D) 28.6 km

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams

2 2215
Q:

If cosec 240° = x, then the value of x is

A) √2 B) 2
C) -2/√3 D) -√2
 
Answer & Explanation Answer: C) -2/√3

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 2213
Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) 286 B) 374
C) 143 D) 279
 
Answer & Explanation Answer: D) 279

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

2 2213
Q:

Ramesh marks his article at Rs 6000 and after allowing a discount of 20%, he still earns 60% profit. What is the cost price (in Rs) of the article?

A) 3600 B) 4800
C) 3000 D) 4200
 
Answer & Explanation Answer: C) 3000

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

3 2209