# 10% income of x is equal to 30% income of y and 20% income of y is equal to 40% income of Z. If Z’s income is Rs. 4000, then total income of X, Y, Z ( in RS.) is

1.   Rs. 36000

2.   18000

3.  Rs.24000

4.   Rs.8000

4

Rs. 36000

Explanation :
No Explanation available for this question

# The average weight of a class of 48 students is 70 kg. If the weight of the teacher be included the average rises by 800 gms. Find the weight of the teacher.

1.  109.2 kg

2.  229.3 kg

3.  209.24

4.  199.3 kg

4

109.2 kg

Explanation :
No Explanation available for this question

# A man Covers a distance from a town. A to a town B on scooter at 60 km/hr and rides back from B to A at 40 km /hr. Find his average speed during the whole journey.

1.   48 km/hr

2.  64 km/hr

3.   26 km/hr

4.  13 km/hr.

4

48 km/hr

Explanation :
No Explanation available for this question

# A copper sphere of diameter 36 cm is drawn into a wire of diameter 8 mm. Find the length of the wire.

1.  486 m

2.  256 m

3.  226 m

4.  525 m

4

486 m

Explanation :
No Explanation available for this question

# The radius of the base of cone is 4.2 cm and its height is 10 cm. It is melted and recasted into a sphere. Find the radius of the sphere.

1.  (sqrt 44.1 cm)

2.  (sqrt 22.4 cm)

3.  (sqrt 1.2 cm)

4.  none of these

4

(sqrt 44.1 cm)

Explanation :
No Explanation available for this question

# How many iron rods, each of length 14 m and diameter 4 cm can be made out of 0.88 cubic metre of iron

1.  400

2.  200

3.  300

4.  100

4

400

Explanation :
No Explanation available for this question

# On decreasing the price of fans by 15 % the sales increased by 10%. What is the effect on money receipt.

1.  6.5%

2.  8.5%

3.  7%

4.  16.5%

4

6.5\%

Explanation :
No Explanation available for this question

# In a class, the no. of boys is more than the no. of girls by 24 % of the total strength the ratio of boys to girls is

1.  31:19

2.  21: 36

3.  25 : 33

4.  5 : 3

4

31:19

Explanation :
No Explanation available for this question

# The mean of 39 observations is 8. If one more observation of 48 is added to the data, the new mean will be

1.  9

2.  8

3.  7

4.  2

4

9

Explanation :
No Explanation available for this question

1.  8,12&20

2.  5,10, & 15

3.  2,5 & 64

4.  4 , 8 & 16

4