On selling a jug for ₹ 144, a man loses (1/7) of his outlay. If it i

1.	On selling a jug for ₹ 144, a man loses (1/7) of his outlay. If it is sold for ₹ 189, what is the gain %?(a) 12.5% (b)25% (c) 30% (d)50%
Answer» (a) 12.5% Because, Let the CP be, ₹ x Then, x – (1/7)x = 144 = (7x –x) = (144 × 7) = x = (144 ×7)/6 = x = 168 ∴ CP = ₹ 168, New SP = ₹189 Gain = SP –CP = 189 – 168 = 21 Gain % = {(gain/CP) × 100} = {(21/168) × 100} = {2100/168) = 12.5%

On selling a jug for ₹ 144, a man loses (1/7) of his outlay. If it is sold for ₹ 189, what is the gain %?(a) 12.5% (b)25% (c) 30% (d)50%

Answer»

(a) 12.5%

Because,

Let the CP be, ₹ x

Then, x – (1/7)x = 144

= (7x –x) = (144 × 7)

= x = (144 ×7)/6

= x = 168

∴ CP = ₹ 168,

New SP = ₹189

Gain = SP –CP

= 189 – 168

= 21

Gain % = {(gain/CP) × 100}

= {(21/168) × 100}

= {2100/168)

= 12.5%