In a school, three classes took the same examination.class A contained 30 pupils and the average mark for the class was 66.class B contained 22 pupils and the average mark for the class was 56.class C contained 20 pupils.The average obtained by all the pupils together was 1.5.calculate the average mark of class C.
The average temperature at noon on 14 consecutive days was 26.5 degree centigrade .During these days the lowest temperature was 19.2 degree centigrade and the highest temperature was 40.8 degree centigrade. If on two days the temperature was the same as the average, what was the average temperature for the remaining 10 days?
In some test, three problems, A, B, and C were posed. Among the participants there were 25 who solved at least one problem. Of all the participants
who did not solve problem A, the number who solved problem B was twice the number who solved C. The number who solved only problem A was one
more than the number who solved A and at least one other problem. Of all
participants who solved just one problem, half did not solve problem A. How many solved just problem A?
5 sea pirates have 100 gold coins and want to share it. They propose a plan.
The senior most one has to propose an idea, if at least 50 % agree, the coins r shared accordingly. else the senior is killed and the next senior most is asked to present a plan and so on .
note, all the guys r very clever and very greedy and dont want to lose the coins, and dont want to die. Form a way to share the money.
2 maths geniuses meet after 20 yrs.one says i am married. and have 3 daughters. the product of their ages is 72. the sum is the same as the house no. other says, but I cant find it out. The other says. . simple. ok, my eldest daughter has just started the piano classes.Find their ages.