Four persons can cross a bridge in 3, 7, 13, 17 minutes. Only two can cross at a time. Find the minimum time taken by the four to cross the bridge.
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if a person moves 15km straight and turns 45km right and moves 15km straight then how much distance he needs to walk to reach starting point?
1. Which is the greatest 3 u/root 7, 6 u/r 5, 2 u/r 20 is
Find the next series number 0, 6, 24, 120, 210, ---, ----
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A train travels a certain distance taking 7 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 5 hrs.What is the distance traveled
A persons age is similar to the year he was born(last two digits is counted as age).
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1/3 of girls and 1/2 of boys is goto canteen. What factor & total no. of class mates goto canteen.
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Complete the sequence A, E ,I ,M ,Q ,U , _ , _?
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A person was fined for exceeding the speed limit by 10 mph.Another person was also fined for exceeding the same speed limit by twice the same. If the second person was travelling at a speed of 35 mph. find the speed limit