by shivamtripathi22 | Dec 3, 2024 | Uncategorized
Percentage:- The word ‘per cent’ means per hundred. Thus 9 percent means 9 parts out of 100 parts. This can also be written as (frac{9}{100}).Therefore percentage is a fraction whose denominator is 100, and the numerator of this fraction is called the Rate...
by shivamtripathi22 | Dec 1, 2024 | Uncategorized
25. A and B are two alloy of copper and Tin prepared by mixing metals in proportion 7:2 and 7:11 respectively. If equal quantities of alloy are melted to form a third alloy C then find the proportion of copper and tin in alloy...
by shivamtripathi22 | Nov 22, 2024 | Uncategorized
16. A man purchased two books in Rs. 1000. He sells the first book at (frac{4}{5}) of its cost price and the second book at (frac{5}{4}) of its cost price. If during the whole transaction he earns a profit of Rs. 100 then find the cost price of cheaper...
by shivamtripathi22 | Nov 21, 2024 | Uncategorized
11. In two alloys A and B the ratio of zic to tin is 5:2 and 3:4 respectively. 7kg of alloy A and 21kg of the alloy B are mixed together to form a new alloy. What will be the ratio of zinc and tin in the new alloy...
by shivamtripathi22 | Nov 17, 2024 | Uncategorized
1. 15 litres of a mixture of milk and water in the ratio 2:1, the amount of milk added to the mixture so as to have milk and water in the ratio 5:2 ? View Solution 2. 72 litres of a mixture contains milk and water in the ratio of 27:5. How much more water is to be...
