Brainteasers
If James has 25 fish and 13 drown sadly. How many are left
25 fish
What is x if 5x + 72 = 102
6
x is between 100-175 the number is a square and its digits add up to 16. what is the number?
169
If I have a number of rocks. what are the fewest rocks would you need to make all numbers 1-31 grams?
all the rocks have different masses.
5 rocks
if I take 3 apples from you and you take 2 from me how many apples would you have If you had 6 apples?
6
100+200+3000+400
3700
A complete cycle of a traffic light takes 60 seconds. During each cycle the light is green for 25 seconds, yellow for 5 seconds and red for 30 seconds. At any randomly chosen time, what is the probability that the light will NOT be green?
error
a bag has 10 red marbles and 15 blue marbles. What is the probability that you would pick a red marble then a blue marble without replacement?
15/119
1+2+5x4-3+15-30x2x0+1-14=?
0
123456+876544
1000000
x is 290-2y and y is z+20 and z is 72+18-10
what is y-x
10
a car has 2 different paths. path 1 takes 30 minutes to reach its destination but has 1/3 the path time as traffic. path 2 has 1/4 the total time it takes the car to reach its destination but has 55 minutes of traffic what is the time in minutes that it takes for the car to take path 1 then come back by path 2
105 minutes