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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Akhilesh is two times as good a workman as Bansi and therefore is able to finish a job in 39 days less than Bansi. Working together, they can do it in

A) 13 days B) 24 days
C) 26 days D) 12 days
 
Answer & Explanation Answer: C) 26 days

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

1 1773
Q:

If a : b is 32 : 35 and b : c is 21 : 32, then a : c is?

A) 5 : 3 B) 3 : 5
C) 1 : 1 D) 5 : 7
 
Answer & Explanation Answer: B) 3 : 5

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Filed Under: Ratios and Proportions
Exam Prep: AIEEE , Bank Exams , CAT

2 1772
Q:

A boat travels 24 km upstream in 6 h and 20 km downstream in 4 h. then, the speed of a boat in still water and the speed of current are respectively

A) 4.5 km/h and 3 km/h B) 4.5 km/h and 0.5 km/h
C) 4 km/h and 2 km/h 5 km/h and 2 km/h D) 5 km/h and 2 km/h
 
Answer & Explanation Answer: B) 4.5 km/h and 0.5 km/h

Explanation:

Distance travelled by boat in upstream=24km

Time taken = 6 h

Speed of the boat in upstream = 24/6 = 4 km/h

And distance travelled by boat in downstream = 20 km

Time taken = 4h Speed of the boat in downstream = 20/4 km/h = 5 km/h

Now, speed of the boat in still water = 1/2 [ speed of the boat in upstream + speed of the boat in downstream] =1/2 [4 + 5] = 1/2 × 9 = 4.5 km/h

And speed of the current = 1⁄2 [speed of the boat in downstream – speed of the boat in upstream] = 1/2 [5 – 4] = 1/2 × 1 = 0.5 km/h

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

7 1772
Q:

A bank offers 10% compound interest per half year. A customer deposits Rs. 3600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is.

A) Rs 1116 B) Rs 2232
C) Rs 558 D) Rs 279
 
Answer & Explanation Answer: A) Rs 1116

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Filed Under: Compound Interest
Exam Prep: Bank Exams

1 1772
Q:

The weights of two iron balls are 3.5 kg and 7.5 kg. What is the percentage weight of the 1st ball with respect to 2nd ball.

A) 46 2/3% B) 35%
C) 46 1/3% D) 45%
 
Answer & Explanation Answer: A) 46 2/3%

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Filed Under: Percentage
Exam Prep: Bank Exams

1 1772
Q:

If x2 + y2 + 6x + 5 = 4(x - y) then x - y is

A) 1 B) -1
C) 0 D) 4
 
Answer & Explanation Answer: A) 1

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Filed Under: Simplification
Exam Prep: Bank Exams

1 1772
Q:

The ratio of the curved surface area and total surface area of a right circular cylinder is 2 : 5. If the total surface area is 3080 cm2, then what is the volume (in cm3) of the cylinder?

A) 4312√6 B) 3822√6
C) 4522√6 D) 4642√6
 
Answer & Explanation Answer: A) 4312√6

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1772
Q:

In the given figure, AB is a diameter of the circle with center O and XY is the tangent at a point C. If ACX = 35 deg, then what is the value (in deg) of CAB?

A) 45 B) 35
C) 55 D) 65
 
Answer & Explanation Answer: C) 55

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1771