সমতলে বস্তুকণার গতি (Motion of particles in a plane) MCQs
Showing 50 questions (Total: 1241)
Dream filled with frightening images is :
Correct Answer:
B: A nightmare
If a product is purchased at 1800% taka, what is the selling price when profit is 50%?
Correct Answer:
C: 2700
A 6 meter long ladder touches the top of a wall and makes a 45° angle with the horizon. What is the height of the wll?
Correct Answer:
B: 32
A buniessperson invest 2800 taka and earns 5% interest on some money and 4% interst on the rest of money. If the gets 128 taka as a profit at the end of the year, what is the amount of money on which he earns 5% interest?
Correct Answer:
A: 1600
If the difference of two smaller of a right angle triangle is 7°, then which one is smallest angle?
Correct Answer:
D: 41.5°
By rowing, an boartman needs 4 hours for a kilometer hourney of 15 kilometers, He is able to go 5 kilometers with the currect and he could manage 3 kilometer against the current. What is his speed of rowing?
Correct Answer:
B: 4 km/hour
A 4 meter long ladder touches the top of a wall and makes a 45° angle with the horizon. What is the height of the wall?
Correct Answer:
C: 42
যদি A=-1-342 হয়, তাহলে adj A কত হবে?
Correct Answer:
ক: 10
a2-5a+1=0 হলে, a3+1a3=?
Correct Answer:
A: 25
If p = qx, q=ry and r=pz, what is the value of xyz?
Correct Answer:
C: 1
Out of 30 student o any class, 20 students like football and 15 students like cricket . The number of students who like both the games is 10. Find the number of students who do not like any of the sports.
Correct Answer:
B: 5
In n is an even integer, which of the following must be an odd integer?
Correct Answer:
C: (16n+24)8
If a = 7+43 and b=7-43, what is the value of 1/a2 + 1/b2?
Correct Answer:
B: 194
what is the result if you multiply 6/13 by the reciprocal of - 7/16?
Correct Answer:
D: -9691
Express 0.2°4° into simple fraction:
Correct Answer:
C: 833
What is the 200th term of the series , 2,5,8,11,14 ,..........?
Correct Answer:
B: 599
5+ 8+ 1+ 4 + .... if nth term is 383 , what is the value of n?
Correct Answer:
D: Try your self
The velocity of a boat rowed downstrem is three times than that of the same boat rowed upstream . If the speed of the stream is 2.5 miles per hour, what is the speed of rowing in miles per hour?
Correct Answer:
A: 5
A man has Tk. 10,000 to invest . He invests TK. 4000 at 5% and Tk. 3500 at 4% . In order to have a yearly income of TK. 500 . he must invest the remainder at ____
Correct Answer:
D: 6.4%
Two tailors X and Y are paid a total of Tk. 550 per week by their employer . If X is paid 120 percent of the sum paid to Y, how much is Y paid per Week?
Correct Answer:
B: Tk. 250
A number is 20 smaller than another 23rd of small number is equal to 14th of the larger number . What is the largest number ?
Correct Answer:
B: 32
Two numbers A and B are such that the sum of 5% of A and 4% of B is two -third of the sum of 6% of A and 8% of B. What is A : B?
Correct Answer:
D: 4 : 3
The ratio between boys and girls in a class is 2 : 5 . If 2 boys leave and 4 girls join the class, the ratio of the boys to the girls becomes 1 :4 what is the original number of girls in the class?
Correct Answer:
B: 20
A class of 50 girls and 60 boys sponsored a football game . If 52% of the girls and 30% of the boys attended the game, what percentage of the class went to the game?
Correct Answer:
C: 40%
X will be half as old as Y in 3 years . X will also be one-third as old as Z 5 years, If Z is 15 years older than Y, how old is X?
Correct Answer:
C: 8
Find the two __ hundredth term , a200 , of the sequence 2,5,8,11
Correct Answer:
C: 599
The population of grasshoppers doubles in a particular field each year .Approximately how many years will it take the population to grow from 2,000 grasshoppers to 1,000,000 or more?
Correct Answer:
B: 9
For the positive numbers n, n+1, n+2, n+4 and n+8, the mean is how much greater than the median ?
Correct Answer:
A: 1
If the ratio of men to women in a class is 3 : 5 and the class contains 24 people, how many additional men would have to enroll to make the ratio of men to women 1 : 1?
Correct Answer:
B: 6
Think of a number and then double the number Add 6 and multiply the result by 10. Now divide the result by 20 , then subtract the number you first thought out. What is the result?
Correct Answer:
B: 3
B can work thrice as much as A can do in a day. If they together can do 4/15 parts of a work in 10 days, in how many days will B finish the work alone?
Correct Answer:
B: 50 days
If u>t, r>q , s>t , and t>r ,which of the following must true? I. u>s II. s>q III.u>r
Correct Answer:
D: ii and iii
If a + b+c =15 a2+b2+c2=83, what is the value of ab + bc +ca ?
Correct Answer:
B: 71
If c+d =11 and both c and d are positive integers, which of the following is a possible value for 5c +8d ?
Correct Answer:
B: 61
A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be ___ .
Correct Answer:
D: 26
The average temperature on Monday , Tuesday & Wednesday was 84° and for Tuesday, Wednesday and Thursday was 87° . If the temperature on Monday was 91° , find the temperature on Thursday?
Correct Answer:
A: 100°
When one card is selected at random form a pack of 52 playing cards , the number of possible. selection is _____ .
Correct Answer:
B: 52
Fresh grapes contain 90% water by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 20 kg of fresh grapes?
Correct Answer:
C: 2.5 kg
In a class, the number of boys is more than the number of girls by 12 % of the total students . The ratio of boys to girls is :
Correct Answer:
D: 28 : 25
If x = -0.5 then which of the following has the smallest value?
Correct Answer:
A: 21/x
The average marks of a student in 10 parers are 80. If the highest and the lowest scores are not considered, the average is 81 . If his highest score is 92. find the lowest.
Correct Answer:
B: 60
The sum of four consecutive two -digit odd numbers , when divided by 10, becomes a perfect square. Which of the following can possibly be one of these four numbers?
Correct Answer:
C: 41
In △ABC, , points P,Q and R are the mid points of sides AB, BC and CA respectively . If area of △ABC, is 20 square unit, find the area of ∆PQR .
Correct Answer:
C: 5 square unit
The average of four consecutive odd positive integers is always:
Correct Answer:
D: Either B or C
If I have a number and add 6 , I get same result as if I double the number and subtract 21. Find the number.
Correct Answer:
D: 27
If a = 9x -2, b=3x +5 and 2a =b , then the value of x =?
Correct Answer:
C: 35
The angles of a triangle are in the ratio of 2 : 3 : 4 the largest angle in the triangle is ?
Correct Answer:
D: 80
If 2x -y =4 then 6x -3y =?
Correct Answer:
D: 12
The population of atownincreased from 1,75,000 to 2,62,500 in a decade. The average percentage increase of the population per year is?
Correct Answer:
D: 5%
If b<2 and 2x -3b=0 , then
Correct Answer:
A: x<3