Let Cost Price (CP) = x Then Selling Price(SP) if he sells at profit = x(1+8%) = 1.08x and SP, if he sells at loss = x(1-8%) = 0.92% Given, 1.08%-0.92% = Rs12 0.16x = Rs.12 ⇒x = Rs.75
A marketing manager is able to manage an average of Rs240 per week during 40h week . But in the final week of the month, his rates are increased by 50%. Then find out the commission the marketing manager makes in that week, if he puts in 60h during that final week?
Total commission = New rate after increase x Total hours in the week.
Correct Option: B
Average rate per hr = 240/40 = Rs6/hr In last week, his rate per hour increases by 50%, so in the last week, his hourly rate = Rs.6 x (1+50%)= Rs.9 Total hour spent in final week = 60h ∴ Total commission = 60h x Rs.9/hr = Rs.540
Calculate the amount of water which should be added to 80% solution of Sulphuric acid to make it a 50% solution?
Assume as x be the amount of water added to make concentration of 50%
Correct Option: A
Concentration of Sulphuric acid = 80% So in a 100cc, Sulphuric acid = 80cc and water = 20cc Let x be the amount of water added to make concentration of 50% ⇒80/(100+x) = 50/100 ⇒ 80/(100+x) = 1/2 ∴ x = 60cc
An metallic alloy contains 20g copper, 20g tin and 40g silver.Then find out the percentage of tin in the alloy?