Bihar Police Constable Model Paper 4

Given:
Marked price = Rs. 1500
Discount = 10%
Profit = 20%
Formula used:
SP = MP × [(100 – Discount%)/100]
CP = SP × [100/(100 + Gain%)]
Calculation:
SP = Rs. 1500 × [(100 – 10)/100]
⇒ Rs. 1500 × (90/100)
⇒ Rs. 1350
CP = Rs. 1350 × [100/(100 + 20)]
⇒ Rs. 1350 × (100/120)
⇒ Rs. 1125
∴ The cost price of article is Rs. 1125