Part C - Elementary Mathematics
In a mixture water and wine are in the ratio of 7 : 19. If it contains 12 litres more wine than water, then what will be the quantity of wine in mixture?
In a group of 60 students, 50% are interested in history, and the rest are interested in geography. If the average score in history is 85, and the average score in geography is 75, what is the average score for the entire group?
P1, P2 and P3 are three students. P1 got 62.5 percent less marks than P2 and 70 percent more marks than P3. If P2 got 8160 marks, then what are the marks got by P3?
A sum of โน600 was lent to two people, one at the rate of 5% per annum and the other at the rate of 13% per annum. If the simple interest after one year is โน62, find the sum lent at each rate.