IBPS PO Mains 2018 Paper for online practice

Let marked price of Piano XX and YY be 400x and 500x respectively
ATQ—
400x ×

(100−d)

100

= 500x ×

(100−d−18)

100

400 – 4d = 410 – 5d
d = 10%
Cost price of Piano XX =

400x× 90 100

120

×100
= ₹ 300x
Cost price of Piano YY =

500x× (100−28) 100

125

×100
= ₹ 288x
ATQ—
(500x−

72

100

−288x) - (400x×

90

100

−300x) = 384
72x – 60x = 384
x = 32
Cost price of Piano XX = 32 × 300 = ₹ 9600
Cost price of Piano YY = 32 × 288 = ₹ 9216