Aptitude and Reasoning Questions

Q:

A sum becomes Rs 2286 in 3 years and Rs 2448 in 4 years at simple interest. What is the rate (in percentage) of interest per annum?

A) 10 B) 9
C) 8 D) 11
 
Answer & Explanation Answer: B) 9

Explanation:
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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

A and B started a partnership business investing in the ratio of 3 : 8. C joined them after 4 months with an amount equal to 3/4th of B. What was their profit (in Rs) at the end of the year if C got Rs 24,000 as his share?

A) 120000 B) 150000
C) 90000 D) 180000
 
Answer & Explanation Answer: C) 90000

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Filed Under: Partnership
Exam Prep: Bank Exams

3 3188
Q:

If a/(a+b) = 15/21, what is (a+b)/(a-b) is equal to?

A) 13/9 B) 23/11
C) 14/5 D) 21/9
 
Answer & Explanation Answer: D) 21/9

Explanation:

a/(a + b) = 15/21 → a = 15, a + b = 21

→ b = 21– 15 = 6
⇒ a – b =15 – 6 = 9
⇒ (a + b)/(a – b) = 21/9

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In a certain code language, "ACCOUNT" is written as "DFFRXQW". How is "MATHS" written in that code language?

A) PDWKV B) PKLKP
C) PEWLU D) PWDVK
 
Answer & Explanation Answer: A) PDWKV

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

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Q:

X2+X2 =

A) 4X B) 2X
C) 2X^2 D) X/2
 
Answer & Explanation Answer: C) 2X^2

Explanation:

Here the given expression, 

X2 + X is an algebraic expression. Here in this expression the terms are like terms. Now to add them, add their coefficients.

Here in the given expression, the like terms are two X

Hence, adding their coefficients i.e, 1 + 1 = 2

Therefore, 

 

X2 + X2 = 2X2.

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Filed Under: Mathematical Operations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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14 3186
Q:

Concept of Nehative Work

A tub can be filed in 20 minutes but there is a lekage in it which can empty the full tub in 60 minutes. In how many minutes it can be filled?

Answer

Filling efficiency = 5%        


Emptying efficiency = 1.66%  


Net efficiency = 5-1.66 = 3.33%


Therefore, Required time to fil the tub =100/3.33= 30 minutes

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Subject: Time and Work

2 3185
Q:

Cost of 8 pencils, 5 pens and 3 erasers is Rs 111. Cost of 9 pencils, 6 pens and 5 erasers is Rs 130. Cost of 16 pencils, 11 pens and 3 erasers is Rs 221. What is the cost (in Rs) of 39 pencils, 26 pens and 13 erasers?

A) 316 B) 546
C) 624 D) 482
 
Answer & Explanation Answer: B) 546

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

5 3184
Q:

The ratio of present ages of R and S is 11:17. Before 11 years the ratio of their ages was 11:20. What is R's present age (in years)?

A) 51 B) 33
C) 22 D) 40
 
Answer & Explanation Answer: B) 33

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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