Question

By selling the bicycle for Rs 1200, David 20% profit. Find the cost price of the bicycle
[Navodaya Entrance 1999]
(a) Rs 900
(b) Rs 1000
(c) Rs 800
(d) Rs 700

CHAPTER - PROFIT AND LOSS
CLASS - 6th(I'M IN CLASS 5th BUT STUDYING FOR CLASS 6th
SUBJECT - MATHEMATICS ​

Answer 1

Answer:

Rs.1000

Step-by-step explanation:

S.P.= RS.1200

P%= 20%

C.P.= S.P.×100

—————

( 100+P%)

=1200×100

——————

(100+20)

=1200×100

—————

120

= 10×100

= RS.1000

Therefore, C.P. was rs.1000

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Answer 2

Selling price =12000 Rs

Let cost price = X Rs

profit in percentage =(selling price -cost price )

/cost price * 100

but profit=20%

So,

[ (1200 - X ) / X ] * 100 =20

=> 1200 - X =0.2 X

=>1200 =1.2 X

=>X =1200/1.2

=>X = 1000 Rs

Therefore the cost price of cycle = 1000 Rs

So option B is correct