- 11
- 18
- 10
- 20
- C
-
Solution:
250 X 4%
=250 X 4/100
=250 X 1/25
=250/25
=10Answer
A Man purchased a TV set at Rs.4000 and sold it for RS.2500.Find his loss percentage.
- 35%
- 33%
- 35.7%
- 37.5%
- D
-
Solution:
Loss=Cost price- selling price
=RS.4000-Rs.2500
=RS.1500
Loss percentage=(loss/cost price)X100
=(1500/4000)X100
Loss percentage=37.5%
What is the gain or loss percent if oranges are bought at Rs 9 per dozen and sold at Rs 18 per 20 oranges?
- 10%
- 20%
- 15%
- 18%
- C
-
Solution:
Here the cost price of 1 orange =Rs9/12
=Rs 0.75
Selling price of 1 orange=Rs 18/20
=Rs 0.90
There is profit , because selling price is higher than cost price in the above answers.
Now,
Profit percent=(profit/cost price)X100
=(0.9-0.75)X100
=15%
1,3,5,8,9,18,12 find the Mean from these values
- 7
- 8
- 5.5
- 9
- B
-
Solution:
Mean=Sum of All values/Number of values
Mean=(1+3+5+8+9+12+18)/7
Mean=56/7
Mean=8
Find mode 1,3 ,12,5,8,3,6,7,8,6,3,1,12,15,7,3
- 6
- 12
- 3
- 7
- c
-
Definition of mode=most frequent value in the data or most repeated value in given data is termed as mode.
So here we saw the value 3 is repeated more than other values.
Find median from the given data 2,4,8,10,6,12,13
- 4
- 8
- 6
- 12
- B
-
Median=[(n+1)/2]th
Here n is equal to number of values.
Data in Array form:
2,4,6,8,10,12,13
So here n=7
By using formulA:
Median=[(7+1)/2]th
Median=8/2
Median=4th
Means 4th value in Array data is median our mediAn that is 8.
What is 20% of 80?
- 12
- 15
- 30
- 16
- D
-
20%of 80
=80 X 20/100
=80 X 1/5
=80/5
=16
Solve: 360-170=?
- 170
- 180
- 190
- 200
- c
Solve: 117+112=?
- 225
- 229
- 230
- 233
- b
Solve: 296/37=?
- 8
- 10
- 12
- 14,15
- a