Question
Complete the analogy. 49 : 65 :: 64 :
?Solution
The sum of digits of the first number is multiplied by 5 to obtain the second number. 49 : 65 → (4 + 9) = 13,(13 × 5) = .65 Similarly, for 64: (6 + 4) = 10, (10 × 5) = 50.
In a 120-litre chemical mixture, the chemicals A and B are in the ratio 5:7. How much of chemical A must be added to make the ratio 7:7 (i.e., equal amo...
200 litres of mixture X contains acetone and glycerine in the ratio 7:9, respectively. 80 litres of the mixture is withdrawn and labelled as mixture Y a...
In a mixture of 180 liters comprising orange juice and sugar syrup in a 5:4 ratio, if 'p' liters are removed and 16 liters of sugar syrup are added to t...
A mixture consists of 50% water and 50% milk. 10 liters of the mixture is replaced with the same quantity of milk. If the final ratio of milk to water i...
If 4 kg of metal of which 1/3rd is zinc and the rest is copper, be mixed with 5kg of metal, of which 1/6 is zinc and the rest is copper, then...
In a mixture of milk and water, the quantity of water is 40 litres more than that of milk. When 100 litres of milk is added to the mixture, then the qua...
- A solution contains acid and water in the ratio 2:3. After adding 4 litres of acid and 3 litres of water, the ratio becomes 3:4. What was the initial quant...
Mixture ‘A’ contains 80% acetone and rest 30 litres water. Mixture ‘B’ contains 72 litres acetone and rest 50% water. When two m...
An alloy is made of 45% lead, 35% tin, and 20% copper. How much lead should be added to 40 kg of the alloy so that the new alloy contains 55% lead?
In a mixture of juice & water, 70 litres water is mixed due to which ratio changes from 3:4 to 1:3. Find initial quantity of mixture. (in lit...
