IBPS SO Prelims Exam Model Paper 4

Given
Alok bought 30 kg rice price at = Rs. 8.50 per kg
Alok bought 20 kg rice price at = Rs. 8 per kg
Calculation
Cost price 30 kg = 30 × 8.50
⇒ Rs. 255
Cost price 20 kg = 20 × 8
⇒ Rs. 160
Cost price of mixture is = 255 + 160
⇒ Rs. 415
Total bought rice is = 30 + 20
⇒ 50 kg
Mixture per kg price is =

415

50

⇒ Rs. 8.30
∴ S.P. of the mixture per kg=

(8.30×120)

100

⇒ Rs. 9.96