There are 9 balls of equal size and same weight (they look similar) except 1. How may weighs required to find the dissimilar ball using a weighing balance?
There are 9 balls of these one is defective. Find the minimum no. of chances of finding the defective one.
There are 9 coins. One of 9 is less weighted and others have equal weighed. Find the minimum no of balances to find the defective coin?
There are coins of Rs.5, 2, 1,50p, 25p, 10p, 5p. each one has got a weight. Rs 5 coin weighs 20gms.find the minimum number of coins to get a total of 196.5gms.
There are no of urns &no of balls. If three balls are placed in each urn then 3 balls is left. If 4 balls are placed in each urn then 1 urn is left. What is the total no of balls?
There are some houses in a street back to back. And they that house behind 10 were 23. How many houses in the street?
There are two trees in a lawn. One grows at a rate 3/5 of the other in 4 years. If the total growth of trees is 8 ft. What is the height of the smaller tree after 2 years
There is a 14 digit credit card number in which every 3 consecutive digits add to 20. Here is a part of it.. Find the value of 'x'? _ _ _ 9 _ _ _ x _ _ _ 7 _ _
There r 1200 elephant .some have blue and pink strips.some have pink & green strip. 400 ele. have only pink strip. how many have only blue strip
There was a ques on work something like 2 typists type 2 papers in 4 hrs then in how much time will 5 typists take or something like that.
Three men A, B, C can complete a work separately in some specified days (May be 8, 7, 6).If they do the work together by alternate days. Then how many days need to complete the work?
Three men goes to a hotel to stay ,the clerk says $30 per room/day so all the three plans to stay in one room so each pays $10.After some time the clerk realises that he made a mistake of collecting $30 but the room cost only $25,there fore he decides to return $5 to them so he calls the room boy and gives him $5 asking him to return. The room boy keeps $2 with him and he returns only $3($1 for each). Now Totally all have paid $9 each($27)+room boy $2 which is equal to $27.where did $1 go,who has made the mistake?
Two coins one with HEAD IN BOTH SIDES and the other coin HEAD IN ONE SIDE AND TAIL IN THE OTHER SIDE is in a box,a coin is taken at random and FOUND HEAD IN ONE SIDE .what is the probability that THE OTHER SIDE IS HEAD?
Two pencils costs 8 cents, then 5 pencils cost how much
Two trains are traveling at 18kmph and are 60 km apart. There is flying in the train. It flies at 80kmph. It flies and hits the second train and then it starts to oscillate between the two trains. At one instance when the two trains colloide it dies. At what distance travel by the fly.