Last number sequence challenge:
What is the missing number in the following sequence of numbers?
1, 5, 14, 30, ?, 91
1] 45
2] 55
3] 60
4] 70
5] None of these
Answer:
2] 55.
Why? You start with 1 which is incremented by the square of 2 or 4 which equals 5. The next number in the sequence is 5 plus the square of 3 (which is 9), which equals 14. The number to square at 30 is 5, so 30+25 (the square of 5) = 55.
Today’s Problem:
There are 3 societies A, B, C. A lent cars to B and C as many as they had already. After some time B gave as many tractors to A and C as many as they have. After sometime C did the same thing. At the end of this transaction each one of them had 24. Find the cars each originally had.
1] A had 21 cars, B had 39 cars and C had 12 cars
2] A had 39 cars, B had 39 cars and C had 12 cars
3] A had 39 cars, B had 21 cars and C had 19 cars
4] A had 39 cars, B had 21 cars and C had 12 cars