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General Questions

1.

Four persons are there to cross a bridge. They have only one torch light necessary to cross the bridge. Anil can cross in 2 min, Bhushan  can cross in 4 min, Chetan can cross in 10 min and Dheeraj can cross in 20 min. All the four wants to cross the bridge as early as possible. But at one time maximum two people can cross the bridge, that also with torch only. What will be the minimum time to cross the bridge?  

a.
32
b.
34
c.
36
d.
38

2.

On an Island in Honululu, there are x totos in a 2010. 30 totos in a thousand of the original population die every year and 25 totos in a thousand of the original population are born every year. In how many years will the population of totos will be half of the population in 2010?

 

a.
25
b.
50
c.
100
d.
Indeterminate

3.

A 50m long army platoon marching towards the war front. The last person in the platoon wants to give a letter to the commander leading the platoon. So while the platoon is marching he runs ahead, reaches the commander and hands over the letter to him and without stopping he runs and comes back to his original position. In the mean time the whole platoon has moved ahead by 50m. How much distance did the last person cover in this exercise? (Assuming that he ran the whole distance with uniform speed.)

a.
100m
b.
110m
c.
120.7m
d.
None of these

4.

A person who has a certain amount with him goes to the market. He can buy 50 oranges or 40 mangoes. He retains 10% of the amount for taxi fare and buys 20 mangoes and of the balance he purchases oranges. what will be the number of oranges he can purchase now?

a.
15
b.
20
c.
25
d.
30

5.

Three math students went for a stroll and saw a car jump a signal. None of them recalled the license plate number, but each noticed a few peculiarities. One recalled that it was a four-digit number and the first two digits were the same. The second said that the last Iwo digits were also alike. The third maintained that the number was a perfect square. What was the number?

a.
6644
b.
6699
c.
8866
d.
7744
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