Aptitude and Reasoning Questions

Q:

In a mixture of 35 litres, the ratio of milk and water is 4:1. If 7 litres of water is added to the mixture, the ratio of milk and water of the new mixture will be

A) 2:1 B) 1:2
C) 4:5 D) 5:4
 
Answer & Explanation Answer: A) 2:1

Explanation:

Ratio of milk andwater = 4:1

Quantity of water = 35/5 = 7 litres

Quantity of milk = 35 X 4/5 = 28 litres

If 7 litre of water is added, new quantity of water = 14 litre

New ratio of milk and water = 28:14 = 2:1

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Filed Under: Alligation or Mixture

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Q:

Name a pair of complementary angles?

name_a_pair_of_complementary_angles1535013814.png image

A) B + C B) A + C
C) C + C D) B + A
 
Answer & Explanation Answer: D) B + A

Explanation:

Complementary angles are those whose sum is 90.

Given here, is a right angled triangle, where anfle C is 90 deg. In this, sum of Angles A + C = 90, since, sum of angles in a right angled triangle = 180, angle C = 90 and

hence sum of A + B = 180 - C = 180 - 90 = 90.

 

Hence, the pair of cimplementary angles in the given triangle = Angle A + B.

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Filed Under: Arithmetical Reasoning
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Q:

3 divided by 1/3?

A) 1 B) 0
C) 9 D) None
 
Answer & Explanation Answer: C) 9

Explanation:

3 divided by 1/3

=> 313

= 3 x 3/1 

= 9

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Filed Under: Arithmetical Reasoning
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Q:

In the given figure, four identical semicircles are drawn in a quadrant. XA = 7 cm. What is the area (in sq.cm) of shaded region ?

 

A) 70 B) 140
C) 77 D) 84
 
Answer & Explanation Answer: D) 84

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

In a 900 meters race, Sathish beats Kiran by 270 meters and Rahul by 340 meters. By how many meters does Kiran beat Rahul in the same race?

A) 140 B) 20
C) 100 D) 70
 
Answer & Explanation Answer: C) 100

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

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Q:

A trader had 960 kgs of rice. He sold a part of it at 20% profit and the rest at 8% profit, so that he made a total profit of 12%. How much rice (in kgs) did he sell at 8% profit?

A) 460 B) 560
C) 540 D) 640
 
Answer & Explanation Answer: D) 640

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

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Q:

Seven years from now Virat will be twice as old as Mohinder. Five years ago Mohinder's age was one year less than 2/5 of Virat's age. What is Virat's present age?

A) 55 yrs B) 51 yrs
C) 57 yrs D) 53 yrs
 
Answer & Explanation Answer: A) 55 yrs

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

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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
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