Quantitative Aptitude - Arithmetic Ability Questions

Q:

An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21⁄2 hours to fill the tank. The leak can drain all the water off the tank in how many hours?

A) 9 B) 10
C) 10.5 D) 11.5
 
Answer & Explanation Answer: B) 10

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Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

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Q:

Dev lent Rs. 8000 to Jairam for 17 years and Rs. 4700 to Karnik for 16 years on simple interest at the same rate of interest and received Rs. 21120 in all from both of them as interest. The rate of interest per annum is:

A) 10.5 percent B) 10 percent
C) 11 percent D) 11.5 percent
 
Answer & Explanation Answer: B) 10 percent

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

Simple interest on a sum of Rs 1400 for 3 years and 4 months is Rs 700. What is the rate (in percentage) of interest per annum?

A) 17 B) 15
C) 18 D) 12
 
Answer & Explanation Answer: B) 15

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

If ABCDEF is a regular hexagon, then what is the value (in degrees) of ∠ADB?

A) 15 B) 30
C) 45 D) 60
 
Answer & Explanation Answer: B) 30

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Filed Under: Area
Exam Prep: Bank Exams

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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

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Q:

The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?

A) 50000 B) 60000
C) 40000 D) 80000
 
Answer & Explanation Answer: C) 40000

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

The list price (marked price ) of an article is Rs. 900 and is available at two successive discounts of 20% and 10% ; the selling price of the article,in rupees, is

A) 640 B) 648
C) 720 D) 738
 
Answer & Explanation Answer: B) 648

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

The bar chart given shows the sales of 3 types of cars in the Indian automotive industry over 4 years. All the sales figures have been shown in terms of 000 units.

What is the simple annual growth rate (in %) in the sales of SUV from 2009 to 2012?

A) 90 B) 100
C) 133.33 D) 150
 
Answer & Explanation Answer: C) 133.33

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Filed Under: Percentage
Exam Prep: Bank Exams

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