# If tan C = 1, then sin2 C + cos2 C is equal to :

1.  2

2.  √3

3.  0

4.  1

4

1

Explanation :
No Explanation available for this question

# The greatest among √7- √5, √5-√3, √9-√7, √11- √9 is

1.  √7 - √5

2.  √5 - √3

3.  √9 - √7

4.  √11 - √9

4

√5 - √3

Explanation :
No Explanation available for this question

# 12/ 3+√5+2√2 is equal to

1.  1- √5 + 2√2 + √10

2.  1 +√5 +√2 = √10

3.  1+ √5 - √2 +√10

4.  1 -√5 -√2 +√10

4

1 +√5 +√2 = √10

Explanation :
No Explanation available for this question

# What are the average marks obtained by all the students in science out of 150

1.  75

2.  112.50

3.  108.50

4.  78

4

112.50

Explanation :
No Explanation available for this question

# What are the average marks obtained by all students in georaphy

1.  54.25

2.  54.75

3.  73

4.  71

4

54.75

Explanation :
No Explanation available for this question

# What is the ratio between total marks obtained by D in Maths, Science and English together and the total marks obtained by F in these subjects together respectively

1.  209:215

2.  215:209

3.  206 : 223

4.  223 : 206

4

209:215

Explanation :
No Explanation available for this question

# Marks obtained by C in Science are approximately what per cent of his total marks obtained in all the six subjects together

1.  22

2.  16.

3.  20

4.  28

4

28

Explanation :
No Explanation available for this question

# What are the total marks obtained by ‘B’ in all the subjects together

1.  336

2.  223

3.  446

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# The angle of elevation of a tower at a point is 45 degrees. After going 40m towards the foot of the tower, the angle of elevation of the tower becomes 60 degrees. Find the height of the tower.

1.  40√3/ √3+1m

2.  40√3 m

3.  40√3/ √3-1

4.  None of these

4

40√3/ √3-1

Explanation :
No Explanation available for this question

1.  32

2.  8

3.  1

4.  0

4