Did you knew that the radio is ranked number two in the list of ‘101’ Gadgets that changed the World’s according to History Channel?
“know” instead of “knew”.
An alloy of copper and tin contains 60% of copper. If 10 kg of more tin is added to the alloy, the copper content gets reduced to 50%. Find the quantity...
When a mixture of (Honey + water) contains Honey and water in the ratio 5:3, respectively. Twenty-five percent of the mixture is removed and replaced wi...
A mixture contains alcohol and water in the ratio of 9:4 respectively. If 221 ml of mixture is taken out and 80 ml of water and 25 ml of alcohol is adde...
Two blends of a commodity costing Rs. 70 and Rs. 80 per kg respectively are mixed in the ratio of 2:3 by weight. If one-fifth of the mixture is sold at ...
A mixture initially has 40 liters of petrol and an unknown quantity of diesel. When 25% of the mixture is extracted into container P and 10 liters of pe...
In a blend of oil and diesel, the amount of diesel constitutes 80% of the quantity of oil present. Additional quantities 'p' liters of oil and 'q' liter...
In a container containing 120 liters of pure petrol, 40 liters of petrol are drawn and replaced with the same quantity of diesel. This process is repeat...
55% of the original 'a' liters of pure petrol is taken out from a container and replaced with 66 liters of Methanol, ensuring the total quantity of the ...
378 ml of mixture ‘A’ contains milk and water in the ratio 4:5 respectively. If the quantity of milk in mixture ‘B’ is 37.5% mor...
In a blend of 120 liters comprising honey and milk, where honey constitutes 45%, if (a - 4) liters of honey and (a + 4) liters of milk are introduced, t...