CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
9 litres at Rs. 11/L are mixed with 5 litres at Rs. 41/L. What is the average cost per litre?
A. Rs. 23.71
B. Rs. 21.71
C. Rs. 52.00
D. Rs. 26.00
Correct Answer: B
Weighted average = (9×11+5×41)/14 = Rs. 21.71/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
4 litres at Rs. 16/L are mixed with 7 litres at Rs. 36/L. What is the average cost per litre?
A. Rs. 28.73
B. Rs. 30.73
C. Rs. 26.00
D. Rs. 52.00
Correct Answer: A
Weighted average = (4×16+7×36)/11 = Rs. 28.73/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
7 litres at Rs. 11/L are mixed with 9 litres at Rs. 31/L. What is the average cost per litre?
A. Rs. 22.25
B. Rs. 42.00
C. Rs. 24.25
D. Rs. 21.00
Correct Answer: A
Weighted average = (7×11+9×31)/16 = Rs. 22.25/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
2 litres at Rs. 16/L are mixed with 4 litres at Rs. 38/L. What is the average cost per litre?
A. Rs. 30.67
B. Rs. 54.00
C. Rs. 32.67
D. Rs. 27.00
Correct Answer: A
Weighted average = (2×16+4×38)/6 = Rs. 30.67/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
5 litres at Rs. 11/L are mixed with 6 litres at Rs. 33/L. What is the average cost per litre?
A. Rs. 25.00
B. Rs. 44.00
C. Rs. 22.00
D. Rs. 23.00
Correct Answer: D
Weighted average = (5×11+6×33)/11 = Rs. 23.00/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
8 litres at Rs. 16/L are mixed with 8 litres at Rs. 40/L. What is the average cost per litre?
A. Rs. 30.00
B. Rs. 28.00
C. Rs. 28.00-1
D. Rs. 56.00
Correct Answer: B
Weighted average = (8×16+8×40)/16 = Rs. 28.00/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
3 litres at Rs. 11/L are mixed with 3 litres at Rs. 35/L. What is the average cost per litre?
A. Rs. 25.00
B. Rs. 23.00-1
C. Rs. 46.00
D. Rs. 23.00
Correct Answer: D
Weighted average = (3×11+3×35)/6 = Rs. 23.00/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
6 litres at Rs. 16/L are mixed with 5 litres at Rs. 30/L. What is the average cost per litre?
A. Rs. 24.36
B. Rs. 23.00
C. Rs. 22.36
D. Rs. 46.00
Correct Answer: C
Weighted average = (6×16+5×30)/11 = Rs. 22.36/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
9 litres at Rs. 11/L are mixed with 7 litres at Rs. 37/L. What is the average cost per litre?
A. Rs. 48.00
B. Rs. 22.38
C. Rs. 24.00
D. Rs. 24.38
Correct Answer: B
Weighted average = (9×11+7×37)/16 = Rs. 22.38/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
4 litres at Rs. 16/L are mixed with 9 litres at Rs. 32/L. What is the average cost per litre?
A. Rs. 27.08
B. Rs. 29.08
C. Rs. 48.00
D. Rs. 24.00
Correct Answer: A
Weighted average = (4×16+9×32)/13 = Rs. 27.08/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
7 litres at Rs. 11/L are mixed with 4 litres at Rs. 39/L. What is the average cost per litre?
A. Rs. 50.00
B. Rs. 21.18
C. Rs. 25.00
D. Rs. 23.18
Correct Answer: B
Weighted average = (7×11+4×39)/11 = Rs. 21.18/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
2 litres at Rs. 16/L are mixed with 6 litres at Rs. 34/L. What is the average cost per litre?
A. Rs. 50.00
B. Rs. 29.50
C. Rs. 31.50
D. Rs. 25.00
Correct Answer: B
Weighted average = (2×16+6×34)/8 = Rs. 29.50/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
5 litres at Rs. 11/L are mixed with 8 litres at Rs. 41/L. What is the average cost per litre?
A. Rs. 29.46
B. Rs. 31.46
C. Rs. 52.00
D. Rs. 26.00
Correct Answer: A
Weighted average = (5×11+8×41)/13 = Rs. 29.46/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
8 litres at Rs. 16/L are mixed with 3 litres at Rs. 36/L. What is the average cost per litre?
A. Rs. 23.45
B. Rs. 26.00
C. Rs. 21.45
D. Rs. 52.00
Correct Answer: C
Weighted average = (8×16+3×36)/11 = Rs. 21.45/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
3 litres at Rs. 11/L are mixed with 5 litres at Rs. 31/L. What is the average cost per litre?
A. Rs. 21.00
B. Rs. 42.00
C. Rs. 25.50
D. Rs. 23.50
Correct Answer: D
Weighted average = (3×11+5×31)/8 = Rs. 23.50/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
A mixture contains 45 L milk and 8 L water. What percentage of the mixture is water?
A. 20.09%
B. 84.91%
C. 15.09%
D. 17.78%
Correct Answer: C
Water percentage = 8/53×100 = 15.09%.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
6 litres at Rs. 16/L are mixed with 7 litres at Rs. 38/L. What is the average cost per litre?
A. Rs. 27.85
B. Rs. 54.00
C. Rs. 27.00
D. Rs. 29.85
Correct Answer: A
Weighted average = (6×16+7×38)/13 = Rs. 27.85/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
A mixture contains 20 L milk and 9 L water. What percentage of the mixture is water?
A. 68.97%
B. 31.03%
C. 36.03%
D. 45.00%
Correct Answer: B
Water percentage = 9/29×100 = 31.03%.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
9 litres at Rs. 11/L are mixed with 9 litres at Rs. 33/L. What is the average cost per litre?
A. Rs. 24.00
B. Rs. 44.00
C. Rs. 22.00
D. Rs. 22.00-1
Correct Answer: C
Weighted average = (9×11+9×33)/18 = Rs. 22.00/L.
CSS - PMS - CCE - PCS - Mathematics
Mixture & Alligation
A mixture contains 35 L milk and 10 L water. What percentage of the mixture is water?
A. 22.22%
B. 27.22%
C. 77.78%
D. 28.57%
Correct Answer: A
Water percentage = 10/45×100 = 22.22%.