Answer:
The correct solution is C (x> -2)
Answer:
71%
Step-by-step explanation:
Conditional Probability: <u>P(A and B)</u>
P(A)
P(A and B): 0.5
P(A): 0.7
=0.5/0.7
=0.71428... (x 100)
Answer:
rs 200
Step-by-step explanation:
Let cost price = x
At 30% profit; marked price of radio is 30% of x = (100% + 30%) = 130%x
Discount = rs 3%
Profit made = 30
Hence,
Marked price - discount = cost price + 30
130%x - 30 = x + 30
1.3x - 30 = x + 30
1.3x - x = 30 + 30
0.3x = 60
Divide both sides by 0.3
0.3x / 0.3 = 60/ 0.3
x =
1.3x / 1.3 = 60 / 1.3
x = 200
Hence, cost price = rs 200
