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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

8 litres are drawn from a flask containing milk and then filledwith water. The operation is performed 3 more times. Theratio of the quantity of milk left and total solution is 81/625.How much milk the flask initially holds?

A) 10 ltr B) 20 ltr
C) 30 ltr D) 40 ltr
 
Answer & Explanation Answer: B) 20 ltr

Explanation:

Let initial quantity be Q, and final quantity be F

F = Q(1 - 8/Q)4

=> Q = 20

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Filed Under: Alligation or Mixture

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Q:

10 Consecutive numbers are given. If the average of the two numbers given in the middle is 13.5, then what is the sum of the first 6 numbers?

A) 65 B)  59
C) 69 D) 80
 
Answer & Explanation Answer: C) 69

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

3 3295
Q:

The ratio of the monthly salaries of A and B is in the ratio 5 : 16 and that of B and C is in the ratio 17 : 18. Find the monthly income of C if the total of their monthly salary is Rs. 1,87,450.

A) Rs. 66,240 B) Rs. 72,100
C) Rs. 62,200 D) Rs. 65,840
 
Answer & Explanation Answer: A) Rs. 66,240

Explanation:

So A : B : C = 1 5 × 1 7 : 1 6 × 17 : 16 × 18 = 255 : 272 : 288

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 3295
Q:

If 5A = 13B = 7C; find the value of A : B : C.

A) 91:35:65 B) 65:35:91
C) 35:91:65 D) 7:13:5
 
Answer & Explanation Answer: A) 91:35:65

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

4 3289
Q:

A used car dealer sells a car for Rs 7.6 lakhs and makes some loss. If he had sold it for Rs 9.2 lakhs his profit would have been thrice his loss. What was the cost price of the car (in Rs lakhs)?

A) 8.5 B) 8.75
C) 8.25 D) 8
 
Answer & Explanation Answer: D) 8

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

1 3286
Q:

If A's wealth is 4/9 times of B's and C's is 7/6 times of B's, what is the ratio of C's wealth to A's?

A) (8:21) B) (21:8)
C) (27:14) D) (14:27)
 
Answer & Explanation Answer: B) (21:8)

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

1 3284
Q:

5% of 400000?

A) 4000 B) 16000
C) 8000 D) 20000
 
Answer & Explanation Answer: D) 20000

Explanation:

5% of 400000

= 5 x 400000/100

= 20,000

 

Hence, 5% of 4,00,000 = 20,000

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

17 3283
Q:

2% of a = b, then b% of 10 is the same as:

A) 200% of a B) 20% of a/100
C) 20% of a/10 D) 200% of a/10
 
Answer & Explanation Answer: C) 20% of a/10

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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