In Tukitu village, one forth of the people are raising flowers, one ninth is growing wheat and one eleventh are going bankrupt. What could be the number of people in the village?
Answer(s): A
The answer must be a number that is divisible equally by 4, 9 and 11. The only possible answer is A.
352 - 342 =?
Answer(s): B
352 - 342 = (35 – 34)(35 +34) = 1(35 + 34).
Tom divided his cards between Tim and Din so each one received an odd amount of cards. The number of cards that Tim received multiplied by the number of cards that Din received is a number larger than 49 and smaller than 121. How many cards did Tom have in the first place?
Answer(s): C
Answers A and E are disqualified immediately because those are even numbers that cannot be divided into two odd numbers. 22 is 11 + 11 but11 x 11 is bigger than 121, the same idea with 14, therefore the answer is 18. 18 = 9 + 9. 9 x 9 = 81.
In the beginning of the season, the owner of a football team bought T players for the price of 4R each. At the end of the season the owner sold the players in a total profit of X. How much did the owner get for all the players?
The owner bought T player that cost him altogether 4TR. He had a profit of X so he sold them for 4TR + X.
A bird is flying from an oak tree to a pine tree in a speed of 6 Km/h.On her way back, she flew at a speed of 4 Km/h, thus, the trip lasted 4 hours more. What is the distance between the trees? (In Km)
Answer(s): D
The distance to the pine tree is 6 x X, where X represents the time of the trip. The distance back to the oak tree is 4(X+4), assuming the trip back is equal in length.Therefore 6X = 4(X+4) X = 8. The length of the trip is 8 x 6 = 48 Km.
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