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Q:

If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time?

A) Rs.51.25 B) Rs.52
C) Rs.53 D) Rs.54
 
Answer & Explanation Answer: A) Rs.51.25

Explanation:

Sum =Rs.(50 x 100/2x5)

= Rs. 500.

Amount

=[Rs.500x(1+5/100)²]

=Rs(500x21/20x21/20).

=Rs. 551.25

 

C.I

= Rs. (551.25 - 500)

= Rs. 51.25

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

3 7740
Q:

A, B and C can do a piece of work in 72, 48 and 36 days respectively. For first p/2 days, A & B work together and for next ((p+6))/3days all three worked together. Remaining 125/3% of work is completed by D in 10 days. If C & D worked together for p day then, what portion of work will be remained?

A) 1/5 B) 1/6
C) 1/7 D) 1/8
 
Answer & Explanation Answer: B) 1/6

Explanation:

Total work is given by L.C.M of 72, 48, 36

Total work = 144 units

Efficieny of A = 144/72 = 2 units/day

Efficieny of B = 144/48 = 3 units/day

Efficieny of C = 144/36 = 4 units/day

 

According to the given data,

2 x p/2 + 3 x p/2 + 2 x (p+6)/3 + 3 x (p+6)/3 + 4 x (p+6)/3 = 144 x (100 - 125/3) x 1/100

3p + 4.5p + 2p + 3p + 4p = 84 x 3 - 54

p = 198/16.5

p = 12 days.

 

Now, efficency of D = (144 x 125/3 x 1/100)/10 = 6 unit/day

(C+D) in p days = (4 + 6) x 12 = 120 unit

Remained part of work = (144-120)/144 = 1/6.

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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7 7732
Q:

The given pie chart represents the annual yield of certain crops in tons.

If the total production is 9000 tons, then the yield of rice is ___ tons.

 

A) 3000 B) 1000
C) 2000 D) 1500
 
Answer & Explanation Answer: B) 1000

Explanation:
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Filed Under: Pie Charts
Exam Prep: Bank Exams

2 7731
Q:

 

If the total number of bikes sold in 2009 was 150000,how many more red bikes were sold than black ones?

 

A) 2250 B) 750
C) 2300 D) 3000
 
Answer & Explanation Answer: A) 2250

Explanation:
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Filed Under: Bar Charts
Exam Prep: Bank Exams

0 7728
Q:

Planet : Orbit :: Projectile : ?

A) Path B) Milky way
C) Track D) Trajectory
 
Answer & Explanation Answer: D) Trajectory

Explanation:

The path traced by planet is called Orbit. Similarly, the path traced by projectile is called Trajectory.

 

Hence, Planet : Orbit : : Projectile : Trajectory.

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Filed Under: Analogy
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8 7728
Q:

Cutting and peeling of onion brings tears to the eyes because of the presence of _____ ?

A) Amino acid B) Sulfur
C) Carbon D) Fat
 
Answer & Explanation Answer: B) Sulfur

Explanation:

Cutting and Peeling of onion brings Tears to the eyes because of presence of Sulphur in the cell.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
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26 7725
Q:

Study the following diagram and answer questions based on it.

 

The colour preferences of children are given.

 

 

How many children like both brown and white but not black?

 

A) 10 B) 20
C) 50 D) None
 
Answer & Explanation Answer: D) None

Explanation:
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Filed Under: Pie Charts
Exam Prep: Bank Exams

1 7724
Q:

A person got Rs.48 more when he invested a certain sum at compound interest instead of simple interest for two years at 8% p.a. Find the sum  ?

A) Rs.8000 B) Rs.6500
C) Rs.7500 D) Rs.5000
 
Answer & Explanation Answer: C) Rs.7500

Explanation:

p=d×1002R2 

Where d is difference, r is rate of interest. 

=> (48 x 100 x 100) / 8 x 8 = Rs.7500

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Filed Under: Simple Interest
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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6 7723