# A sum of money doubles itself in 4 years at compound interest. It will amount to 8 times itself at the same rate of interest in :

1.  18 years

2.  12 years

3.  16 years

4.  24 years

4

12 years

Explanation :
No Explanation available for this question

1.  360o

2.  540o

3.  720o

4.  None of these

4

540o

Explanation :
No Explanation available for this question

# A sum of Rs. 1550was lent partly at 5% and partly at 8% simple interest. The total interest received after 3 years is Rs. 300. The ratio of money lent at 5% to that at 8% is :

1.  5 : 8

2.  8 : 5

3.  31 : 6

4.  16 : 15

4

16 : 15

Explanation :
No Explanation available for this question

# If x: y = 3 : 4, then the value of (4x- y) : (2x + 3y) is

1.  4 : 9

2.  8 : 9

3.  4 : 3

4.  8 : 3

4

4 : 9

Explanation :
No Explanation available for this question

1.  4 cm

2.  6 cm

3.  9 cm

4.  12 cm

4

6 cm

Explanation :
No Explanation available for this question

# The length of a rectangular garden is 12 metres and its breadth is 5 metres. Find the length of the diagonal of a square garden having the same area as that of the rectangular garden:

1.

2.

3.  13 m

4.

4

Explanation :
No Explanation available for this question

1.  900o

2.  720o

3.  180o

4.  540o

4

180o

Explanation :
No Explanation available for this question

# The diagonals of a rhombus are 32 cm and 24 cm respectively. The perimeters of the rhombus is :

1.  80 cm

2.  72 cm

3.  68 cm

4.  64 cm

4

80 cm

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  10

4.  2

4

2

Explanation :
No Explanation available for this question

1.  462 sq.cm

2.  539 sq.cm

3.  616 sq.cm

4.  693 sq.cm

4