# The areas of two equilateral triangles are in the ratio 25 : 36. Their altitudes will be in the ratio:

1.  36 : 25

2.  25 : 36

3.  5 : 6

4.

4

5 : 6

Explanation :
No Explanation available for this question

# If 15% of (A + B) = 25% of (A - B), then what per cent of B is equal to A

1.  10%

2.  60%

3.  200%

4.   400%

4

400\%

Explanation :
No Explanation available for this question

# If O is the centre of the circle, then V is :

1.  72o

2.  62o

3.  82o

4.  52o

4

82o

Explanation :
No Explanation available for this question

# AB and CD are parallel straight lines of lengths 5 cm and 4 cm respectively. AD and BC intersect at a point O such that AO = 10cm, then OD equals :

1.  7 cm

2.  8 cm

3.  5 cm

4.  6 cm

4

8 cm

Explanation :
No Explanation available for this question

# sin25o + sin210o + sin15o + .... + sin285o + sin290o is equal to

1.

2.

3.  9

4.

4

Explanation :
No Explanation available for this question

1.  54

2.  18

3.  72

4.  36

4

36

Explanation :
No Explanation available for this question

1.  45°

2.  90°

3.  80°

4.  100°

4

90°

Explanation :
No Explanation available for this question

1.

2.  0

3.  1

4.

4

1

Explanation :
No Explanation available for this question

# The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose ages differ by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is :

1.  20 years

2.  15 years

3.  10 years

4.  8 years

4

15 years

Explanation :
No Explanation available for this question

1.  12

2.  20

3.  24

4.  48

4