In what ratio should sugar costing Rs. 40 per kg be mixed with sugar costing Rs. 48 per kg , so as to earn a profit of 20% by selling the mixture at Rs. 54 per kg?
Alloy A contains metals x and y only in the ratio 5 : 2 and alloy B contains these metals in the ratio 3 : 4. Alloy C is prepared by mixing A and B in the ratio 4 : 5. The percentage of x in alloy C is:
A container contains 20 L mixture in which there is 10% sulphuric acid. Find the quantity of sulphuric acid to be added in it to make the solution to contain 25% sulphuric acid.
The price of a variety of a commodity is Rs. 7/kg and that of another is Rs. 12/kg. Find the ratio in which two varieties should be mixed so that the price of the mixture is Rs. 10/kg.
A solution of milk and water contains milk and water in the ratio of 3 : 2. Another solution of milk and water contains milk and water in the ratio of 2 : 1. Forty litres of the first solution is mixed with 30 litre of the second solution. The ratio of milk and water in the resultant solution is:
The ratio of sprit and water is 2 : 5. If the volume of solution is increased by 50% by adding sprit only. What is the resultant ratio of sprit and water?
Several students have taken an exam. There was an error in the answer key which affected the marks of 48 students, and their average marks reduced from 78 to 66. The average of remaining students increased by 3.5 marks. This resulted the reduction of the average of all students by 4.5 marks. The number of students that attended the exam is:
In a 56 lilters mixture of milk and water, the ratio of milk to water is 5 : 2. In order to make the ratio of milk to water 7 : 2, some quantity of milk is to be added to the mixture. The quantity of the milk present in the new mixture will be:
A vendor bought two varieties of tea, brand A and brand B, costing Rs. 15 per 100 g and Rs. 18 per 100 g, respectively, and mixed them in a certain ratio. Then, he sold the mixture at Rs. 20 per 100 g, making a profit of 20%. What was the ratio of brand A to brand B tea in the mixture?
A mixture contains acid and water in the ratio of 6 : 1. On adding 12 litres of water to the mixture, the ratio of acid to water becomes 3 : 2. The quantity of water (in litres) in the original mixture was:
The ratios of acid and water in vessels A and B are 4 : 5 and 7 : 5, respectively. In what ratio should the contents of A and B be mixed to get a solution containing 50% acid?
How many litres of water should be added to a 7.5 litre mixture of acid and water containing acid and water in the ratio of 1 : 2 such that the resultant mixture has 20% acid in it?
In what ratio should cement costing Rs. 250 per bag be mixed with cement costing Rs. 325 per bag so that the cost of the mixture is Rs. 300 per bag. (A bag of cement is 50 kg).
A grain trader has 100 bags of rice. He sold some bags at 10% profit and rest at 20% profit. His overall profit on selling these 100 bags was 14%. How many bags did he sell at 20% profit?
വേർതിരിക്കപ്പെട്ട ദീർഘചതുരങ്ങൾ അടങ്ങിയതാണ് ഒരു ബാർഡയഗ്രം. ഇതിലെ ഓരോ ദീർഘചതുരവും ____ എന്നറിയപ്പെടുന്നു
120 വിലകളുടെ ആപേക്ഷിക ആവർത്തി പട്ടിക നിർമ്മിച്ചു അഞ്ചാമത്തെ വിലയുടെ ആപേക്ഷിക ആവർത്തി 0.1 ആയാൽ അഞ്ചാമത്തെ വിലയുടെ ആവർത്തി എത്ര ?
ഏഴാമത്തെയും എട്ടാമത്തെയും വിലകളുടെ ആരോഹണ സഞ്ചിത ആവർത്തികൾ 32 ഉം 84 ഉം ആയാൽ എട്ടാമത്തെ വിലയുടെ ആവർത്തി എന്ത് ?
ഒരു സാമ്പിൾ ഏതെങ്കിലും ഒരു സവിശേഷത മാത്രമാണ് പഠനവിധേയമാക്കുന്നത് എങ്കിൽ അത്തരം ഡാറ്റയെ _______ എന്ന് വിളിക്കുന്നു
ആരോഹണ സഞ്ചിതാവൃത്തികളെയും അവരോഹണ സഞ്ചിതാവൃത്തികളെയും സൂചിപ്പിക്കുന്ന പട്ടികകളെ _______ എന്നു വിളിക്കുന്നു
ഒരു ആൾ 1200 രൂപയ്ക്ക് നാളികേരം വാങ്ങി. അത് വിൽക്കുമ്പോൾ 12% ലാഭം ലഭിക്കണമെന്ന് അയാൾ ആഗ്രഹിക്കുന്നു. എങ്കിൽ എത്ര രൂപയ്ക്കാണ് നാളികേരം വിൽക്കേണ്ടത്?