Solve this Share with your friends Share 1 Sanjay Kumar Manjhi answered this Dear Student,Q.71ITEMSPRICE OF 1 ITEMNUMBER OF ITEM BOUGHTTOTAL PRICEDVD Player5000PC Game1000Robo-pet4000DVD Movie2500If you buy 1 of each item total cost=5000+1000+4000+2500=12500Money left after bought 1 item each=20000-12500=7500Now you don't want buy 2 DVD Player and Robo-pet. So, You should spend remaining money on PC Game and DVD Movie.Number of DVD Movie= 75002500=3 (you can 3 more DVD Movie)or Number of PC Game=75001000=7.5 (means just 7 PC Game more)These 2 option are when you only want to buy one item.Now you can buy both of them with the remaining money;Combined price of PC Game and DVD Movie =1000+2500=3500 So, Number of PC Game and DVD Movie=75003500=2.14 (means you can buy 2 of each items more)So, you have Three 3 options to spend your money.Option 1:ITEMSPRICE OF 1 ITEMNUMBER OF ITEM BOUGHTTOTAL PRICEDVD Player500015000PC Game100011000Robo-pet400014000DVD Movie2500410000Total Money spend=5000+1000+4000+10000=20000Option 2:ITEMSPRICE OF 1 ITEMNUMBER OF ITEM BOUGHTTOTAL PRICEDVD Player500015000PC Game100088000Robo-pet400014000DVD Movie250012500Total Money spend=5000+8000+4000+2500=19500In this case you have (20000-19500=500) money left.Option 3:ITEMSPRICE OF 1 ITEMNUMBER OF ITEM BOUGHTTOTAL PRICEDVD Player500015000PC Game100033000Robo-pet400014000DVD Movie250037500Total Money spend=5000+3000+4000+7500=19.5In this case you have (20000-19500=500) money left.Q.72ItemsCost of 1 ItemVideos70DVDs190CDs140Here you have 3 options,Option 1:ItemsCost of 1 ItemHow manyTotalVideos704280DVDs1902380CDs1402280Total Amount Spent=280+380+280=940 (You are left with Rs. 60)Option 2:ItemsCost of 1 ItemHow manyTotalVideos702140DVDs1903570CDs1402280Total Amount Spent=140+570+280=990 (You are left with Rs. 10)Option 3:ItemsCost of 1 ItemHow manyTotalVideos702140DVDs1902380CDs1403420Total Amount Spent=140+380+420=940 (You are left with Rs. 60)Q.79Suppose total number of aidience=xNow, Number of children=4x10, Number of ladies=3x10 and rest are MenSo, Number of Men=x-(4x10+3x10)=x-7x10Also, it is given that number of children was 28 more than men.So, 4x10=x-7x10+28=4x10=10x-7x+28010=x=280So, Total number of audience =280.Regards. 0 View Full Answer
