Question
A tank initially contains a water-alcohol mixture in a
7:3 ratio. After removing 20 liters of the mixture and replacing it with pure alcohol, the ratio becomes 1:1. Determine the tank's total capacity.Solution
SOLUTION: Let initially container contains 7x liters of water and 3x liters of alcohol After 20 liters of this mixture are replaced with alcohol then, 
 = 1/1 
 = 1/1 Cross-multiplying- 70x-140 = 30x+140 40x = 280 x = 7 the total volume of the tank = 10x = 70 liter
Which of the following movies has been made tax free by Haryana government?
India's first underwater metro has been built in which state/union territory?
Where was the 'T20 World Cup 2022' held from 16th October to 13th November?
Mukhya Mantri Kanya Sumangala Yojana was launched in which of the following year?
Lusaka is the capital of which of these countries?
The two famous assemblies in the reign of Harshavardhana were held at?
Uttar Pradesh's first Butterfly Park is located in ............... .
Who among the following was the first woman chief minister of Uttar Pradesh?
Who has been selected as the 15th President of India?
India’s first spy satellite Risat -2 re-enters Earth after 13 years was launched by which of the following space agencies?
