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1/2 t (2/3 \ 3/4)- (4/5 x 5/6)
Gunpowder contains 75 % nitre and 10 % sulphur .find the amount of gunpowder which carries 9 kg nitre.what amount of gunpowder would contain 2.5 kg sulphur?
If Gary gives $200 to Ricky the ratio of their money will be 1 : 2. If Gary gives $1000 to Ricky their ratio will be 1 : 14. How much does Gary have?
Bernard only had durians. Timothy only had apples. They gave each other, half of their fruits. Bernard sold 8 durians and Timothy sold 40 apples. In the end, the ratio of durians to apples for Bernard and Timothy is 1:7 and 1:6 respectively. How many durians did Bernard have at first?
Each month, a large music store sales an average of 360 guitars, with a standard deviation of 55. What level of monthly sales (in terms of guitars) is so low that you expect sales at or below this level to happen exactly twice per year (no more or less)? Assume the guitar sales are distributed normally.
Gold is 19 times as heavy as water, copper is 9 times as heavy as water. in what ratio should these be mixed to get an alloy 15 times as heavy as water?
if i have 420 what percentage would i have to take away to get 415?
find the smallest number, when divided by 28, 40 and 44 leaves a remainder in each case.
A contractor and a subcontractor are both working on a specific job. The subcontractor gives the contractor an invoice for $500 which includes $250 in labor to the contractor. The contractor takes the subcontractor invoice and adds $300 to include profit and overhead costs as well as an additional $400 in labor performed by the contracting company. A final invoice of $1450 is submitted to the government for payment. How do you compute the percentage of the job worked for the contractor and subcontractor?
convert these 5 to each of the ff denary octal hexadecimal with formula 1.10100101 2.1110111 3.1010101 4.111111111 5.1001001
