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:

If 2x2+2y2=4a the find the value of 2ax2-a+2ay2-a

A) 0 B) 1
C) a D) 2a
 
Answer & Explanation Answer: A) 0

Explanation:
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0 1045
Q:

Bhanu takes a total of 6 hrs 50 min in walking a distance and running back to same place where she started. She could walk both ways in 8 hrs 30 min. The time taken by her to run both ways is :

A) 5 hrs 35 min B) 5 hrs 15 min
C) 5 hrs 10 min D) 5 hrs 45 min
 
Answer & Explanation Answer: C) 5 hrs 10 min

Explanation:
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0 1250
Q:

(242699 + 167109) ÷ (9946 –9446) = ?

A) 852 B) 835
C) 800 D) 820
 
Answer & Explanation Answer: D) 820

Explanation:
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0 1267
Q:

(45.004% of 1439.97 –15.99% of 2249.97) ÷ 35.98 = ?

A) 7 B) 5
C) 3 D) 8
 
Answer & Explanation Answer: D) 8

Explanation:
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0 1173
Q:

874.96 + 94.0091 × 34.98 –1244.98 = ?

A) 2745 B) 4000
C) 1600 D) 2920
 
Answer & Explanation Answer: D) 2920

Explanation:
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0 1191
Q:

Solve 675.9995+(3.9989)2 = ? ÷ 16.9900865

A)

6

B)

50

C)

10

D)

125

 
Answer & Explanation Answer: A)

6



Explanation:
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0 1056
Q:

Solve : 8,23,199.98 × 99.92 = ? × 80,000

A) 1000 B) 1030
C) 1080 D) 1065
 
Answer & Explanation Answer: B) 1030

Explanation:
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2 1123
Q:

In a college, the ratio of boys to girls is 29 : 33 respectively. When 142 more boys join the college, this ratio becomes 21 :19. How many more girls should join the college to make the number of boys and girls equal?

A) 75 B) 90
C) 60 D) 66
 
Answer & Explanation Answer: D) 66

Explanation:
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0 1061