Question

Fill in the blanks in the table below.

	Cost Price (Rs)	Selling Price (Rs)	Profit (Rs)	Loss (Rs)
(1)	20	25	_____	_____
(2)	24	18	_____	_____
(3)	____	40	10	_____
(4)	50	______	_____	15

Answer 1

(1) Cost price = C.P = Rs. 20
Selling Price = S.P = Rs. 25
Since S.P > C.P, a profit is made.
Profit = S.P ˗ C.P
= Rs 25 – Rs 20
= Rs 5

(2) Cost price = C.P = Rs 24
Selling Price = S.P = Rs 18
Since C.P > S.P, a loss is incurred.
Loss = C.P ˗ S.P
= Rs 24 – Rs 18
= Rs 6

(3) Selling Price = S.P = Rs 40
Profit = Rs 10
Profit = S.P ˗ C.P
10 = 40 – C.P
On subtracting 40 from both sides, we get:
10 – 40 = 40 – C.P – 40
⇒ –30 = –C.P
⇒ C.P = Rs 30

(4) Cost price = C.P = Rs 50
Selling Price = S.P
Loss = Rs 15
Loss = C.P ˗ S.P
15 = 50 – S.P
On subtracting 50 from both sides, we get:
15 – 50 = 50 – S.P – 50
⇒ –35 = –S.P
⇒ S.P = Rs 35

	Cost Price (Rs)	Selling Price (Rs)	Profit (Rs)	Loss (Rs)
(1)	20	25	5	_____
(2)	24	18	_____	6
(3)	30	40	10	_____
(4)	50	35	_____	15