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5 1232519.) When two unbiased dice are tossed simultaneously, the numbers that appear on the top surface of the two dice are a and b.What is the probability that a^b is a perfect square? (a^b=a to the power of b) a)1/3 b)2/3 c)23/36 d)11/18 ans: 20.) When two unbiased dice are tossed simultaneously, the numbers that appear on the top surface of the two dice are a and b.What is the probability that (a × b) is a perfect square? a)5/36 b) 2/9 c) 7/36 d) 1/6
3 677322.) There are nine balls on a billiards table numbered consecutively from 1 to 9. Each ball carries the points equal to its complement of 10 for pocketing a ball. If the sum of the points obtained by pocketing the ball in the first three strokes is 8 and the sum of the points obtained by pocketing the ball in the last three strokes is 22, then which of the following cannot be the sum of the numbers written on the ball which were pocketed in the 1st, 5th and 8th stroke? (Assume in each stroke exactly one ball was pocketed and all the 9 balls were pocketed in 9 strokes) a) 19 b) 12 c) 23 d) 8 25.) 1 unit of A is made by mixing 4 units of B and 5 units of C. 1 unit of B is made by mixing 1 unit of X, 4 units of Y and 1 unit of Z. 1 unit of C is made by mixing 2 units of X, 6 units of Y and 1 unit of Z. The weight of 1 unit each of X, Y and Z is 5 kgs, 3 kgs and 8 kgs respectively. What is the total weight of Y required to make 1400 kgs of A? a) 630 kgs b) 720 kgs c) 690 kgs d) 870 kgs 26.) 10 points are chosen on a plane. Every possible pair of points is joined by a line and the midpoint of the line is marked with red colour. What is the minimum possible number points on the plane which have been marked with red colour? a) 9 b) 17 c) 27 d) 45 27.) A function F(n) is defined as F(n-1)=1/(2-F(n)) for all natural numbers n. If F(1) = 2, then what is the value of [F(1)] + [F(2)] +...+ [F(50)]? (Here, [x] is equal to the greatest integer less than or equal to x) a)51 b) 55 c) 54 d) 52
3 1133019.) When two unbiased dice are tossed simultaneously, the numbers that appear on the top surface of the two dice are a and b.What is the probability that a^b is a perfect square? (a^b=a to the power of b) a)1/3 b)2/3 c)23/36 d)11/18 ans: 20.) When two unbiased dice are tossed simultaneously, the numbers that appear on the top surface of the two dice are a and b.What is the probability that (a × b) is a perfect square? a)5/36 b) 2/9 c) 7/36 d) 1/6
3 7907i need model questions and answers for RRB ASSISTANT LOCO PILOT EXAM AND ASSISTANT STATION MASTER EXAM
RRB,
9 20818An ant had to travel from one corner of a room to diagonally opposite corner. It can walk on walls, floor and roof only. How will you find the shortest path for this ant ?
9 62757suppose you select in this company after six month you will get big job in mnc. Are you go there?
2 4849X is a 6 letter word 1 2 and 5 6 letters are the same 3 4 is a day 1 2 5 6 is go away 1 2 3 6 is fat and X is an international celebrity .. What is X ?
6 12164
The average of x and y is 6.5. if z=4,what is the average of x,y,z.
the probability of getting at least in a single through of three coins is
Ravi's salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is
3 angles or 3 sides r given. Which will form a triangle?
sadrine's avg on four tests is 80 which of the following cannot be the number of tests on which she earned exactly 80 points
what is diff b//w the singly reinforced beam,doubly reinforced beam?
if area is icc. by 30% then what is the change in the area?
In a cycle race there are 5 persons named as J, K, L, M, N participated for 5 positions so that in how many number of ways can M make always before N?
There are two balls touching each other circumferentially. The radius of the big ball is 4 times the diameter of the small ball.The outer small ball rotates in anticlockwise direction circumferentially over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. what is 'N' for the horizontal line from the centre of small wheel always is horizontal.
tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
The hour hand lies between 3 and 4. Tthe difference between hour and minute hand is 50 degree.What are the two possible timings?
720 buses operate from a depot, but 168 are being repaired. What percentage of the total that are in service?
If the data is for 10 bogies and for every 2 bogies added speed decreases by 5% what will be the speed after 5 hrs.
What are study skills?
A team of 200 wagers undertakes building work of a bridge. The total time allocated to build the entire bridge is 20 days. After 10 days since start, 200 more wagers join the team and together the team completes the bridge in required time. If the original team do not get those 200 extra wagers, how many days they would be behind schedule to complete building the bridge.