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.

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If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is

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C) 40° D) 50°
 
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If a+b+c = 6 and ab+bc+ca = 1, then the value of bc(b+c) + ca(c+a) +ab(a+b) +3abc is

A) 33 B) 66
C) 55 D) 23
 
Answer & Explanation Answer: B) 66

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If X=32, then the value of 27x3-54x2+36x-11 is

A) 1138 B) 1158
C) 1238 D) 1258
 
Answer & Explanation Answer: D) 1258

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Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is

A) 72 kmph B) 71.11 kmph
C) 36 kmph D) 35.55 kmph
 
Answer & Explanation Answer: D) 35.55 kmph

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The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age

A) 109111% B) 110%
C) 11119% D) 111%
 
Answer & Explanation Answer: B) 110%

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If percentage of profit made,when an article is sold for Rs.78, is twice as when it is sold for Rs.69, the cost price of the article is

A) Rs. 49 B) Rs. 51
C) Rs. 57 D) Rs. 60
 
Answer & Explanation Answer: D) Rs. 60

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If 177 is divided into 3 parts in the ratio 1/2 : 2/3: 4/5, then the second part is

A) 75 B) 45
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Answer & Explanation Answer: D) 60

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