Here, a = 20%
∴ Total loss percentage = a²/100 %

Correct Option: D

Here, a = 20%
∴ Total loss percentage = a²/100 %
= (20 x 20)/100
= 4%

Let A purchased the watch for ₹ N
A x [(1+ r₁) /100] x [(1+ r₂) /100] = CP of article given by C

Correct Option: A

Let A purchased the watch for ₹ N
A x [(1+ r₁) /100] x [(1+ r₂) /100] = CP of article given by C

⇒ N x (140/100) x (80/100) = 432
∴ N = (432 x 100)/(14 x 8) = ₹ 385.71

Let CP of the article be ₹ N,
Then 106% of N - 94% of N = 6

Correct Option: B

Let CP of the article be ₹ N,
Then 106% of N - 94% of N = 6
⇒ 12% of N = 6
∴ N = (6 x 100)/12 = ₹ 50

Given, selling price of an umbrella = ₹ 30
Profit percentage = 20%
∴ Cost price of an umbrella = (30 x 100)/120 = ₹ 25
During the clearance sale, selling price of an umbrella = (30 x 90)/100 = ₹ 27

Correct Option: C

Given, selling price of an umbrella = ₹ 30
Profit percentage = 20%
∴ Cost price of an umbrella = (30 x 100)/120 = ₹ 25
During the clearance sale, selling price of an umbrella = (30 x 90)/100 = ₹ 27
∴ Required profit percentage = [(27 - 25)/25] x 100% = 8%

Let CP = N
Then, according to the question,
(120/100) x (N - 475) = (530 - N)

Correct Option: B

Let CP = N
Then, according to the question,
(120/100) x (N - 475) = (530 - N)
⇒ (6/5) x (N - 475) = (530 - N)
⇒ (6N - 2850) = (2650 - 5N)
⇒ 11N = 5500
∴ N = ₹ 500
∴ Required SP = (500 x 120)/100 = ₹ 600