0
Q:

What is the compound interest earned at the end of 3 years?

I. Simple interest earned on that amount at the same rate and for the same period is Rs. 4500.

II.The rate of interest is 10 p.c.p.a.

III.Compound interest for 3 years is more than the simple interest for that period by Rs.465.

A) I and II only B) II and III only
C) I and III only D) Either II or III only

Answer:   D) Either II or III only



Explanation:

 

 

 

 

 

 

I. gives, S.I for 3 years = Rs. 4500.

 

 

 

II. gives, Rate = 10% p.a.

 

 

 

III. gives, (C.I.) - (S.I.) = Rs. 465.

 

 

 

Clearly, using I and III we get C.I. = Rs. (465 + 4500).

 

 

 

Thus, II is redundant.

 

 

 

Also, from I and II, we get sum =

 

 

 

100 x 4500

 

 

 

= 15000.

 

 

 

10 x 3

 

 

 

Now C.I. on Rs. 15000 at 10% p.a. for 3 years may be obtained.

 

 

 

Thus, III is redundant.

 

 

 

Either II or III is redundant.

Q:

The percent profit made when an article is sold for Rs. 78 is twice as much as when it is sold for Rs. 69, the cost price of the article is?

A) Rs. 60 B) Rs. 51
C) Rs. 55.50 D) Rs. 70
 
Answer & Explanation Answer: A) Rs. 60

Explanation:
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0 1000
Q:

The price of a chair is Rs. 500. It has been sold at two succesive discounts of 10% each. What is its selling price?

A) Rs. 400 B) Rs. 405
C) Rs. 415 D) Rs. 425
 
Answer & Explanation Answer: B) Rs. 405

Explanation:
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3 685
Q:

In  ABC, the height CD intersects AB at D. The midpoints of AB and BC are P and Q respectively. If AD = 8 cm and CD = 6 cm, then the length of PQ is?

A) 3 cm B) 7 cm
C) 9 cm D) 5 cm
 
Answer & Explanation Answer: D) 5 cm

Explanation:
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1 914
Q:

A, B and C can work together for Rs. 550/- A and B together are to do 7/11 of the work. The share of C should be?

A) Rs. 200 B) Rs. 300
C) Rs. 400 D) Rs. 450
 
Answer & Explanation Answer: A) Rs. 200

Explanation:
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1 739
Q:

PQR is right angled at Q. If cosecP = 17/15, then what is the value of sinR ?

A) 15/17 B) 11/17
C) 8/17 D) 13/17
 
Answer & Explanation Answer: C) 8/17

Explanation:
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1 1464
Q:

What is the value of (tan45° + 1/√2) ?

A) 5/√3 B) 7/2√3
C) (√2+1)/√2 D) 4/√3
 
Answer & Explanation Answer: C) (√2+1)/√2

Explanation:
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0 795
Q:

The side of an equilateral triangle is 8 cm. Find its area (in cm2).

A) 25√3 B) 16√2
C) 25√2 D) 16√3
 
Answer & Explanation Answer: D) 16√3

Explanation:
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0 711
Q:

If the line DE is drawn parallel to the base BC of a triangle ABC by intersecting the other two sides, then which of the following is the CORRECT equation for this case.

A) AB/DB=AC/EC B) AD/AB=DB/EC
C) AD/DB=EC/AE D) AD/DB=AE/EC
 
Answer & Explanation Answer: D) AD/DB=AE/EC

Explanation:
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0 741