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:

When n is divided by 4, the remainder is 3. The remainder when 2n is divided by 4 is:

A) 1 B) 2
C) 3 D) 6
 
Answer & Explanation Answer: B) 2

Explanation:
Report Error

View Answer Report Error Discuss

0 634
Q:

If y=2secθ and x=3tanθ then x29-y24 is

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

Explanation:
Report Error

View Answer Report Error Discuss

0 807
Q:

Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is

A) 8 B) 2
C) 4 D) 3
 
Answer & Explanation Answer: C) 4

Explanation:
Report Error

View Answer Report Error Discuss

0 679
Q:

The vertical angle A of an isosceles triangle ΔABC is three times the angle B of it. The measure of the angle A is

A) 90° B) 108°
C) 100° D) 36°
 
Answer & Explanation Answer: B) 108°

Explanation:
Report Error

View Answer Report Error Discuss

0 908
Q:

If a2+1=9a, (a0) then the value of a2+1a2 is

A) 81 B) 18
C) 79 D) 83
 
Answer & Explanation Answer: C) 79

Explanation:
Report Error

View Answer Report Error Discuss

0 746
Q:

If x+5+1x+1=6 then the value of (x+1)3+1(x+1)3 is

A) 2 B) 0
C) -2 D) 4
 
Answer & Explanation Answer: A) 2

Explanation:
Report Error

View Answer Report Error Discuss

0 702
Q:

Two trains start from a certain place on two parallel tracks in the same direction. The speed of the trains are 45 Km/hr and 40 Km/hr respectively. The distance between the two trains after 45 minutes will be

A) 2.5 km B) 2.75 km
C) 3.7 km D) 3.75 km
 
Answer & Explanation Answer: D) 3.75 km

Explanation:
Report Error

View Answer Report Error Discuss

0 1069
Q:

The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was

A) 45 B) 50
C) 55 D) 60
 
Answer & Explanation Answer: C) 55

Explanation:
Report Error

View Answer Report Error Discuss

0 778