Mathematics
90% acid solution (90% pure acid and 10% water) and 97% acid solution are mixed to obtain 21 litres of 95% acid solution. How many litres of each solution are mixed.
Related Questions
From Delhi station, if we buy 2 tickets for station A and 3 tickets for station B, the total cost is ₹ 77. But if we buy 3 tickets for station A and 5 tickets for station B, the total cost is ₹ 124. What are the fares from Delhi to station A and to station B ?
The sum of digits of a two digit number is 11. If the digit at ten's place is increased by 5 and the digit at unit's place is decreased by 5, the digits of the number are found to be reversed. Find the original number.
Class XI students of a school wanted to give a farewell party to the outgoing students of class XII. They decided to purchase two kinds of sweets, one costing ₹ 250 per kg and the other costing ₹ 350 per kg. They estimated that 40 kg of sweets were needed. If the total budget for the sweets was ₹ 11800; find how much sweets of each kind were brought ?
If 3y - 2x = 1 and 3x + 4y = 24, the value of x and y are :
3 and 4
3 and 3
4 and 4
4 and 3