Aptitude and Reasoning Questions

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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Q:

A & B together finish a job in 24 days, while A, B & C together can finish the same job in 8 days. C alone will finish the job in

A) 12 days B) 14 days
C) 16 days D) 24 days
 
Answer & Explanation Answer: A) 12 days

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

6 2399
Q:

2 men or 3 women can complete a job in 96 days. Then 6 men and 7 women will complete the same job in how many days?

A) 18 B) 27
C) 20 D) 24
 
Answer & Explanation Answer: A) 18

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

4 2398
Q:

21 is 35 of what number?

A) 60 B) 85
C) 300 D) 21
 
Answer & Explanation Answer: A) 60

Explanation:

The given sentence 21 is 35 of what number means that 

21 is 35 % of what number

Let that number be P

=> 35P/100 = 21

35P = 2100

P = 2100/35 = 300/5 = 60

 

Hence, 21 is 35 of 60.

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

3 2397
Q:

Multiplicative inverse of 7?

A) 1 B) -1/7
C) 0 D) 1/7
 
Answer & Explanation Answer: D) 1/7

Explanation:

Multiplicative inverse is nothing but a reciprocal of a number. 

It is defined as one of a pair of numbers that when multiplied with another number equals the number 1.

Multiplicative inverse or reciprocal of 7 is 

7 x n = 1

=> n = 1/7.

 

Hence, Multiplicative inverse or reciprocal of 7 is  1/7.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

2 2396
Q:

A sum of Rs. 2600 is invested at two different rates of interest. The difference between the simple interests got after 4 years is Rs 402.80 at these two rates, what is the difference between the rates of interest?

A) 1.58 B) 2.63
C) 3.87 D) 4.02
 
Answer & Explanation Answer: C) 3.87

Explanation:

Let the two different rates of interests be r1 and r2 respectively.

From the given data,

2600 x 4 x r1 - r2100  = 402.80r1 - r2 = 402.80104  = 3.87

 

Hence, the difference in the interest rates = 3.87

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Filed Under: Simple Interest
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

7 2395
Q:

The price of a movie ticket was increased in the ratio 9 : 10. What is the increase in the revenue (in Rs.) of the cinema hall, if the original fare was Rs 180 and 2200 tickets were sold.

A) 44000 B) 440000
C) 39600 D) 396000
 
Answer & Explanation Answer: A) 44000

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

4 2394
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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