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Q:

4 years ago, the ratio of Vikah's to Rahul's age was 3:5. After 6 years, this ratio would become 4:5. Find present age of Rahul.

A) 10	B) 15
C) 14	D) 17

Answer & Explanation Answer: C) 14

Explanation:

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

Q:

The measures of the four angles of a quadrilateral are in the ratio 1:2:4:5. What is the measure of the biggest angle?

A) 120°	B) 30°
C) 60°	D) 150°

Answer & Explanation Answer: D) 150°

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

The ratio of the ages of two boys is 3:4. After 3 years, the ratio will be 4:5.The ratio of their ages after 21 years will be

A) 14:17	B) 17:19
C) 11:12	D) 10:11

Answer & Explanation Answer: D) 10:11

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

Q:

Divide Rs. 210 in the ratio 2:3:4:5. Th respective amounts are:

A) 30,45,65&70	B) 30,45,60&75
C) 35,40,60&75	D) 30,40,60&80

Answer & Explanation Answer: B) 30,45,60&75

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

Q:

James present age is 2/7th of his fathers present age. James brother is three year older to Jame. The respective ratio between present ages of James father and James brother is 14:5. What is the present age of James?

A) 12 years	B) 13 years
C) 14 years	D) 15 years

Answer & Explanation Answer: A) 12 years

Explanation:

James father present age = x
James age = 2/7 x
James brother age = 2x/7 + 3
x = 42
=> 2x/7 = 12 yrs

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

Q:

The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ?

A) 2 : 5	B) 8 : 15
C) 9 : 10	D) 3 : 5

Answer & Explanation Answer: C) 9 : 10

Explanation:

The ratio of X and Y ages at present is 4:5.

Then, the ratio 20 years ago will not be more than the ratio at present.

So, from the options 9:10 is not satifying => its ratio is 0.9 which is greater than presnt ratio of 0.8.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Bank Clerk , Bank PO

Q:

The ratio of earnings of A and B is 4:5. If the earnings of A increase by 20% and the earnings of B decrease by 20%, the new ratio of their earnings becomes 6:5. What are A's earnings?

A) Rs.22,000	B) Rs.27,500
C) Rs. 26,400	D) Cannot be determined

Answer & Explanation Answer: D) Cannot be determined

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

The ratio of water and alcohol in two different containers is 2:3 and 4:5. In what ratio we are required to mix the mixtures of two containers in order to get the new mixture in which the ratio of alcohol and water be 7:5?

A) 7:3	B) 5:3
C) 8:5	D) 2:7

Answer & Explanation Answer: B) 5:3

Explanation:

$W 1 : A 1 W 2 : A 2 . . . . . W N : A N$

2 : 3 4 : 5 5 : 7

$\frac{W 1}{W 1 + A 1} = \frac{2}{5} \frac{W 2}{W 2 + A 2} = \frac{4}{9} \frac{W N}{W N + A N} = \frac{5}{12}$

= 72/180

= 80/180

= 75/180

=> 5 : 3

Therefore, the ratio is 5: 3

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Filed Under: Alligation or Mixture
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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