42410.2345 23455 234555 234555........... what was last 2 numbers at 200th digit?
55
60
65
70
Explanation:
Proceed as above. The last two digits in the 200th place is 55.
Proceed as above. The last two digits in the 200th place is 55.
42411.There are equal number of boys and girls in a class. If 12 girls entered out, twice the boys as girls remain. What was the total number of students in a class?
24
50
48
12
Explanation:
Let the boys = b and girls = g
Given $\dfrac{b}{g-12}=\dfrac{2}{1}$
Substitute b = g in the above equation. g = 24. So total students = 24 + 24 = 48
Let the boys = b and girls = g
Given $\dfrac{b}{g-12}=\dfrac{2}{1}$
Substitute b = g in the above equation. g = 24. So total students = 24 + 24 = 48
42412.a bb ccc dddd eeeee .........What is the 120th letter?
L
O
K
N
Explanation:
Number of letters in each term are in AP. 1, 2, 3, ...
So $\dfrac{n(n+1)}{2}$ <=120
For n = 15, we get LHS = 120. So 15th letter in the alphabet is O. So 15th term contains 15 Os.
Number of letters in each term are in AP. 1, 2, 3, ...
So $\dfrac{n(n+1)}{2}$ <=120
For n = 15, we get LHS = 120. So 15th letter in the alphabet is O. So 15th term contains 15 Os.
42413.There are 120 male and 100 female in a society. Out of 25% male and 20% female are rural. 20% of male and 25% of female rural people passed in the exam. What % of rural students have passed the exam?
22%
20%
18%
22%
Explanation:
From the above data, Rural male = 25%(120) = 30, Rural female = 20%(100) = 20.
Passed students from rural: male = 20%(30) = 6, female = 25%(20) = 5
Required percentage = $\dfrac{11}{50}$ * 100=22%
From the above data, Rural male = 25%(120) = 30, Rural female = 20%(100) = 20.
Passed students from rural: male = 20%(30) = 6, female = 25%(20) = 5
Required percentage = $\dfrac{11}{50}$ * 100=22%
42414.1/7 th of the tank contains fuel. If 22 litres of fuel is poured into the tank the indicator rests at 1/5th mark. What is the quantity of the tank?
370
380
385
375
Explanation:
Let the tank capacity = v liters.
Given, $\dfrac{v}{7}$ +22=$\dfrac{v}{5}$
$\dfrac{v}{5}$-$\dfrac{v}{7}$ =22
v=385
Let the tank capacity = v liters.
Given, $\dfrac{v}{7}$ +22=$\dfrac{v}{5}$
$\dfrac{v}{5}$-$\dfrac{v}{7}$ =22
v=385
42415.What is the probability of getting sum 3 or 4 when 2 dice are rolled
5/36
3/36
4/36
2/36
Explanation:
Required number of ways = (2, 1), (1, 2), (1, 3), (3, 1), (2, 2) = 5
Total ways = 6sup(2)=36
Probability = $\dfrac{5}{36}$
Required number of ways = (2, 1), (1, 2), (1, 3), (3, 1), (2, 2) = 5
Total ways = 6sup(2)=36
Probability = $\dfrac{5}{36}$
42416.On the fabled Island of Knights and Knaves, we meet three people, A, B, and C, one of whom is a knight, one a knave, and one a spy. The knight always tells the truth, the knave always lies, and the spy can either lie or tell the truth.A says: "C is a knave."B says: "A is a knight."C says: "I am the spy."Who is the knight, who the knave, and who the spy?
A= Knight, B=Knave , C = Spy
A=Spy , B= Knight, C = Knave
A=Knave , B= Spy, C = Knight
A= Knight, B= Spy, C = Knave
Explanation:
Let us say A is Knight and speaks truth. So C is Knave and B is spy. So Cs statement is false and Bs statement is true. This case is possible.
Let us say B is Knight. This is not possible as A also becomes Knight as B speaks truth.
Let us say C is Knight. This is clearly contradicted by Cs statement itself.
Let us say A is Knight and speaks truth. So C is Knave and B is spy. So Cs statement is false and Bs statement is true. This case is possible.
Let us say B is Knight. This is not possible as A also becomes Knight as B speaks truth.
Let us say C is Knight. This is clearly contradicted by Cs statement itself.
42733.2ab5 is a four digit number divisible by 25. If a number formed from the two digits ab is a multiple of 13, then ab is
52
45
10
25
42734.The average temperature of Tuesday Wednesday and Thursday was 37 C. The average temperature of Wednesday and Thursday and Friday was 38 C. if the temperature on Friday was 39 C. Find the temperature on Tuesday.
37.33
38.33
36
None of the above
42735.The length, breadth and height of a room are in the ratio 3:2:1. If the breadth and height are halved, while the length is doubled. Then the total area of the 4 walls of the room will be decreased by
30%
18.75%
15%
13.6%
42736.Joke is faster than Paul, Joke and Paul each walk 24 KM. The sum of their speed is 7 Km per hour. And the sum of times taken by them is 14 hours. Then, Joke speed is
3 KM/Hr
4 KM/Hr
5 KM/Hr
7 KM/Hr
42737.Anusha, Banu and Esha run a running race of 100 meters. Anusha is the fastest followed by Banu and then Esha. Anusha, Banu and Esha maintain constant speeds during the entire race. When Anusha reached the goal post, Banu was 10m behind. When Banu reached the goal post Esha was 10m behind. How far was behind Anusha when the latter reached the goal post.option
70
81
90
80
42738.In a vessel, there are 10 litres of alcohol. An operation is defined as taking out five litres of what is present in the vessel and adding 10 litres of pure water to it. What is the ratio of alcohol to water after two operations?
1 : 5
2 : 3
1 : 6
3 : 2
42739.In a single throw with two dice, find the probability that their sum is a multiple either of 3 or 4.
1/3
1/2
5/9
17/36
42740.B alone can do piece of work in 10 days. A alone can do it in 15 days. If the total wages for the work is Rs 5000, how much should B be paid if they work together for the entire duration of the work?
2000
4000
5000
3000
42741.On a 26 question test, 5 points were deducted for each wrong answer and 8 points were added for right answers. If all the questions were answered how many were correct if the score was zero.
10
11
13
12
42742.Arun makes a popular brand of ice cream in a rectangular shaped bar 6cm long, 5cm wide and 2cm thick. To cut costs, the company had decided to reduce the volume of the bar by 19%. The thickness will remain same, but the length and width will be decreased by some percentage. The new width will be,
5.5
4.5
7.5
6.5