# Successive discounts of 10% and 20% are equivalent to a single discount of

1.  30%

2.  5%

3.  28%

4.   72%

4

28\%

Explanation :
No Explanation available for this question

# The simplified value of (sec A – Cos A) 2 + (cosec A – sin A) 2 – (cot A-tan A) 2 is

1.  0

2.

3.  1

4.  2

4

1

Explanation :
No Explanation available for this question

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

1.  80cm

2.  72cm

3.  68cm

4.  64cm

4

80cm

Explanation :
No Explanation available for this question

# If a chord of a circle of radius 5 cm is a tangent to a circle of radius 3 cm, both the circles being concentric, then the length of the chord is

1.  10 cm

2.  12.5 cm

3.  8 cm

4.  7 cm

4

8 cm

Explanation :
No Explanation available for this question

# 55 litres of a mixture has milk and water in the ratio 7 : 4. How much water must be added to get milk and water in the ratio 7 : 6 in the resulting mixture.

1.  16 litres

2.  15 litres

3.  12 litres

4.   10 litres

4

10 litres

Explanation :
No Explanation available for this question

# If (x-y) is 6 more than (w + z) and (x + y) is 3 less than (w - z), then (x - u) is

1.  0.5

2.  1.0

3.  1.5

4.  2.0

4

1.5

Explanation :
No Explanation available for this question

# The HCF of two numbers is 15 and their LCM is 300. If one of the numbers is 60, the other is

1.  50

2.  75

3.  65

4.  100

4

75

Explanation :
No Explanation available for this question

# The angle of elevation of a tower from a distance 200m from its foot is 30o. Height of the tower is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# In a family of 8 adults and some minors, the average consumption of rice per head per month is 10.8 kg: while the average consumption for adults is 15 kg per head and for minors it is 6 kg per head. The number of minors in the family is

1.  8

2.  6

3.  7

4.  9

4

7

Explanation :
No Explanation available for this question

1.  5 hours

2.  8 hours

3.  10 hours

4.   12 hours

4