Quantitative Aptitude - Arithmetic Ability Questions

Q:

The hypotenuse of a right-angled triangle 10 cm and its area is 24 cm^2. If the shorts side is halved and the longer side is double, the new hypotenuse becomes

 

A) √245 cm B) √255 cm
C) √265 cm D) √275 cm
 
Answer & Explanation Answer: C) √265 cm

Explanation:
Hypotenuse = 10cm
Let the other 2 perpendicular sides be a and b
Area ½ a*b = 24
So a*b = 48 cm^2
Also using Pythagoras
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Filed Under: Area
Exam Prep: Bank Exams

5 1944
Q:

If x4 + (1/x4) = 34, then what is the value of x3  (1/x3)?

A) 0 B) 6
C) 8 D) 14
 
Answer & Explanation Answer: D) 14

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 1943
Q:

LCM of two co-prime numbers a and b is (a is greater than b):

A) a B) a+b
C) ab D) b
 
Answer & Explanation Answer: C) ab

Explanation:
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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT

9 1942
Q:

In the following question, select the odd word pair from the given alternatives.

A) Error : Accurate B) Careless : Casual
C) Strength : Lethargy D) Gloomy : Cheerful
 
Answer & Explanation Answer: B) Careless : Casual

Explanation:
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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT

0 1942
Q:

The length of the diagonal of a rectangle is 26 cm and that of one side is 10 cm. What is the area of this rectangle?

A) 260 sq cm B) 120 sq cm
C) 130 sq cm D) 240 sq cm
 
Answer & Explanation Answer: D) 240 sq cm

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

1 1940
Q:

A right circular cylinder has height 28 cm and radius of base 14 cm. Two hemispheres of radius 7 cm each are cut from each of the two bases of the cylinder. What is the total surface area (in cm2) of the remaining part?

A) 3842 B) 4312
C) 3296 D) 4436
 
Answer & Explanation Answer: B) 4312

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

3 1938
Q:

How many job applicants had applied if the ratio of selected to unselected was 19:17. If 1,200 less had applied and 800 less selected, then the ratio of selected to unselected would have been 1:1.

A) 6000 B) 7200
C) 8400 D) 4800
 
Answer & Explanation Answer: B) 7200

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

2 1938
Q:

Profit obtained on selling an article for Rs 540 is equal to the loss incurred on selling the article for Rs 370. If selling price is Rs. 910, then what is the profit percentage?

A) 25 B) 33
C) 50 D) 100
 
Answer & Explanation Answer: D) 100

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

6 1937