Related InterviewSolutions

• `{:((x)/(3) + (y)/(15) = 4),((x)/(3) - (y)/(12) = (19)/(4)):}`
• Solve: `x/a+y/b=a+b``x/(a^2)+y/(b^2)=2`
• The students of a class are made to stand in rows. If 3 students areextra in a row, there would be 1 row less. If 3 students are less in a rowthere would be 2 rows more. Find the number of students in the class.
• Students ofa class are preparing for a drill and are made to stand in rows. If 4students are extra in a row, then there would be 2 rows less. But there wouldbe 4 more rows if 4 students are less in a row. The number of students in theclass is(a) 56 (b) 65 (c) 69 (d) 96
• The monthly incomes of A and B are in the ratio 5 : 4 and their monthly expenditures are in the ratio 7:5. If each saves ₹ 9000 per month, find the monthly income of each.
• A shopkeeper sells a saree at 8% profit and a sweater at 10% discount, thereby, getting a sum Rs 1008. If she had sold the saree at 10% profit and the sweater at 8% discount, she would have got Rs 1028 then find the cost of the saree and the list price (price before discount) of the sweater.
• The sum of the digits of a two-digit number is 12. The number obtained by interchanging its digits exceeds the given number by 18. Find the number.
• A jeweller has bars of 18 carat gold and 12 carat gold. How much of each must be melted together to obtain a bar of 16 carat gold, weighing 120g (Given pure gold is of 24 carat.)?
• 90% and 97% pure acid solutions are mixed to obtain 21 litres of 95% pure acid solution. Find the quantity of each type of acids to be mixed to from the mixture.
• A borrowed Rupees `2500` from B at `12%` per annum compound interest. After 2 years, A gave Rupees `2936` and a watch to B to clear the account. Find the cost of the watch.