Aptitude and Reasoning Questions

Q:

A student multiplied a number by 3/10 instead of 10/3. What is the percentage error in the calculation?

A) 1011.11 percent B) 45.5 percent
C) 91 percent D) 505.56 percent
 
Answer & Explanation Answer: C) 91 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If a sum of Rs.12500 is invested for 1 year at 12% per annum interest being compounded semi­-annually, then interest earned is

A) Rs.1505 B) Rs.1535
C) Rs.1545 D) Rs.1550
 
Answer & Explanation Answer: C) Rs.1545

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

In the following question, select the odd letters from the given alternatives.

A) JGD B) NLI
C) XUR D) QNK
 
Answer & Explanation Answer: B) NLI

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

In the following question, select the missing number from the given series.
1, 3, 6, 10, 15, ?

A) 20 B) 21
C) 22 D) 24
 
Answer & Explanation Answer: B) 21

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Filed Under: Number Series
Exam Prep: Bank Exams

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Q:

There are 45 trees in a row. The lemon tree is 20th from right end. What is the rank of lemon tree from left end?

A) 26 B) 24
C) 25 D) 27
 
Answer & Explanation Answer: A) 26

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

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Q:

The average of X, Y, Z is 24. Also, X:Y = 2:3 and X+Y = 60, then find the value of (X-Z)?

A) 9 B) 10
C) 11 D) 12
 
Answer & Explanation Answer: D) 12

Explanation:

X+Y+Z = 24*3 = 72 X:Y = 2:3 (Given)
Let ‘X’ to be 2a & ‘Y’ to be 3a
X+Y = 60 (Given)
2a+3a = 60
5a = 60
a = 12
Hence, X = 24 & Y = 36
From equation (1)...
Z = 72 - 60
Z = 12
Hence, X - Z = 24-12 = 12.

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Pannalal has done 1/3rd of a job in 20 days, Saiprasad completes the rest of the job in 10 days. In how many days can they together do the job?

A) 12 days B) 6 days
C) 3 days D) 24 days
 
Answer & Explanation Answer: A) 12 days

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

What is the value of 36+729381+643

A) 5/12 B) 5/9
C) 4/9 D) 4/15
 
Answer & Explanation Answer: A) 5/12

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Filed Under: Simplification

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