100 : 125
7×125+ 8×106.25+ 5×100 = 2225

P%= 225/20= 11.25%

38 kg 54.50 ₹ (+10.5)
45 kg 62₹ (+3)
55 kg 48 (+17)

P= 38×10.5+45×3+55×17= 1469
Cp= 7501

P%= 1469/7501≈ 19.6%

405/0.25= 1620

2430× 9/10 - x = 1620
x = 567₹

100-30: 100-75= 70 : 25

70 == 210
25 == 75 kg

32.8×2- (26.5+28.3)/8= 1.35

Avg = 32.8-1.35= 31.45

Cp = 100 , p = 4 , sp = 104

100× (100+x) × (100- 2/3x)= 104

13 × 8 = 104
x = 30

30× 50%= 15

20 : 23 ×87
100 : 87 ×23

4040 : 4002

Loss%= 38/4040= 0.94%

A B C
5x :: 65000-12x :: 7x
1.26x+0.6x +10400 - 1.92x = 10180
12x = 44000
B == 21000₹

A : C
12 18
k
5 7
60+126=12k
k=15.5%

B : A+C
16% 15.5%
1018/65
1040: 1007.5
1018
10.5 : 22= 21 :: 44=65

65== 65000
21=== 21000₹

-10+ 2x = 20×3
x = 35%

11 = 40
10 = 400/11

21 == 40
20 == 800/21

400/11 : 800/21= 21 : 22

3x + 2y : 2x + 3y = 21 : 22
24x = 19y
Ratio of Cp of A: B = 19 : 24