MBA Exam

Manish’s happiness is given by a function a2b, where a is his daily consumption of ice creams and b is his daily consumption of chocolates. Each ice cream costs Rs. 20 and each chocolate costs Rs. 10. If he has Rs.1,000, how much should he spend on ice creams to maximise his happinesspls give an approach other than solving by options.

1) 500
2) 600
3) 660
4) 100
5) 840

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MBA Other Question
In triangle PQR R is an obtuse angle.The perpendicular drawn from P meets QR produced at S. If QR=RS QR=8cm and PQ=20cm find PR

1) 3rt13
2) 4rt13
3) 6rt13
4) 7rt13
 Using Alligations :Ravi lends Rs.3600 on S.I to Harsh for a period of 5 years.He lends a part of the amount at 4%interest and the rest at 6% and receives Rs.960 as the amount of interest.How much money did he lend on 4% interest rate?

1) 2800
2) 2100
3) 2400
4) 1200
5) 1000