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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

A bottle is full of dettol. One-third of it is taken out and then an equal amount of water is poured into the bottle to fill it. This operation is done four times. Find the final ratio of dettol and water in the bottle.

A) 13 : 55 B) 20 : 74
C) 16 : 65 D) 10 : 48
 
Answer & Explanation Answer: C) 16 : 65

Explanation:
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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 2324
Q:

A and B entered into a partnership with Rs.800 and Rs.1600 respectively. From 9th months onward they each decided to invest Rs.100 more on starting of each month. If total annual profit is Rs.7700 then find the profit share of A.

A) Rs.2550 B) Rs.3200
C) Rs.2650 D) Rs.2450
 
Answer & Explanation Answer: C) Rs.2650

Explanation:

A : B = (800 × 8+ 900+ 1000+ 1100+ 1200): (1600 × 8+ 1700+ 1800+ 1900+ 2000)
A : B = 53 : 101
Profit of A ⇒ 7700 ×53/154 = 2650 Rs.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

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Q:

What is the fourth proportional to 336, 288 and 161?

A) 184 B) 115
C) 138 D) 134
 
Answer & Explanation Answer: C) 138

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

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Q:

The average age of Hari, his wife and their two children is 23 years. His wife is just 4 years younger than Hari and his wife was 20 years old when their daughter was born. He was 28 years old when their son was born. What is the sum of the age of Hari and his daughter is?

A) 53 years B) 55 years
C) 56 years D) 50 years
 
Answer & Explanation Answer: D) 50 years

Explanation:
H+W+S+D/4 = 23
H= W+4

D =W-20 = H-24

S = H-28

H+H-4+H-24+H-28/4 = 23

H =37 D =13

H + D = 50

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

1 2316
Q:

Determine the value of “s” for which the equation 5x + 35 = 60x + s has infinite number of solutions.

A) 420 B) 440
C) 460 D) 480
 
Answer & Explanation Answer: A) 420

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

7 2315
Q:

In the circle above, chord AB is extended to meet the tangent DE at D. If AB = 12 cm and DE = 8 cm, find the length of BD.

A) 4 cm B) 5 cm
C) 6 cm D) 7 cm
 
Answer & Explanation Answer: A) 4 cm

Explanation:
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Filed Under: Area
Exam Prep: AIEEE , Bank Exams , CAT

4 2313
Q:

Find the number which multiplied by 15 is increased by 56  ?

A) 6 B) 4
C) 3 D) 12
 
Answer & Explanation Answer: B) 4

Explanation:

Let the number be x. Then,

15x - x = 56

x = 4

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

2 2313
Q:

50.003% of 99.8÷49.988 = ?

A) 2 B) 0
C) 1 D) 50
 
Answer & Explanation Answer: C) 1

Explanation:

50.003% of 99.8 ÷ 49.988 = ?

 

? ~= (50 x 100/100)/50

 

? ~= (50 x 100)/(100 x 50)

 

? ~= 1

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Filed Under: Simplification
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

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