A B
Cp-> 30x+600 : 30x
Sp-> 40x+800 : 40x-400
P-> 10x+200 : 10x-400

600 = (30x+600)×2/15
x = 130

Profit on B = 10x-400= 1300-400= 900₹

_ A B

Cp) 15 15 (D/f 600)
P) 5 3
Sp) 20 20 (D/f 1200)==>(profit d/f = 600)

2 == 600
3 == 900

12a + 18b + 24c = 696---------(1)

a + b+ c = 35---------*12

12a + 12b + 12c = 420--------(2)

From (1) & (2)

6b + 12c = 276
b + 2c = 46

B and C both will be even...

Value assume kro aur put kro

P=20% Q=30% R=42%

30% + 30 = 42% - 6
12% == 36
10% == 30

30%+10% == 40%

+6/15 +5/15)*30

+5/10 +4/10)*30
--------------------------------

+12 +10
+15 +12

X<=y

750/x = 5
x = 150

B tym = 3000/150= 20

lb - 2(l+b) = 128 ---(1)

lb/2 - 2 ( l+ b/2)= 40
lb/2 - 2(2l+b)/2 = 40
lb - 2(2l+b)= 80 ---(2)


-2l + 4l = 48 => l = 24
b = 8

Area = 24× 8= 192 cm²

The cost of a mobile is Rs. 8,000. Sudha bought a mobile in EMI. She paid a down payment of Rs. 2,000 and paid the rest in 6 equal installments at Rs. 1,020 for the next 6 months. What is the SI rate charged?

8000-2000= 6000
1020× 6= 6120

Interest = 120

6000+4980+3960+2940+1920+900= 20700

Rate = 12×120/207 = 6.95%

A milkman purchases 10 litres of milk at Rs. 7 per litre and forms a mixture by adding freely available water which constitutes 16.66% of the mixture. Later on, he replaced the mixture by some freely available water and thus the ratio of milk is to water is 2:1. He then sold the new mixture at cost price of milk and replaced the amount of mixture at twice the cost of milk then what is the profit percentage?

1 1/6
1/3
1/6 : 2/3 = 1 : 4

CP = 10× 7 = 70
SP = 12× 7 + 2.4× 14= 117.6
Profit = 117.6 -70 = 47.6

p%= 47.6/70 = 68%