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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
find the smallest 4 digit number which when divided by both 14 and 21 leaves a remainder of 5 in each case |
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Answer» Answer: 1013 Step-by-step EXPLANATION: When divided by 21 = 48 5/21 |
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| 2. |
For what value of k the equation (k-12)x2+2(k-12)x+2=0 and having equal roots |
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Answer» Step-by-step EXPLANATION: |
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| 3. |
A person had ‘a’ rupees and ‘b’ paise. He spent ₹12.20 and was left with 2b rupees and 2a paise. If a < 50 and b< 100, the initial amount that the parson had is____? |
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Answer» Answer: Step-by-step explanation: A person had ‘a’ rupees and ‘b’ paise. He spent ₹12.20 and was left with 2b rupees and 2a paise. If a < 50 and b< 100, the initial amount that the parson had is Given b is greater than or equal to 40, solving this will give a negative value. So it is not possible. Because a – 12 = 2 b b – 20 = 2 a Now b < 40 a – 1 – 12 = 2 b 100 + b – 20 = 2 a 80 + b = 2 a 2 a – b = 80 Now from both the EQUATIONS we have a – 2 b = 13 2 a – b = 80 ---------------------- Solving the two equations we get 3 b = 54 b = 18 a – 2 b = 13 a – 2(18) = 13 a = 49 So a = 49 and b = 18 |
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| 4. |
. The perimeter of a rectangle is 60 cms. If its length is twice its breadth, then its area is |
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| 5. |
Sum of the natural number between 500 and 1000 which are divisible by 105 |
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Answer» Answer: Sum=3675 Step-by-step explanation: Number between 500 and 1000 which are divisible by 105 can be USED to form a series of Arithmetic Progression like 525,630.......945. Now, taking FIRST term = 525 and common difference = 105, nth term = 945= 525+(n-1)105 On solving the above EQUATION, we get n=5. Now Sum of 5 terms of an A.P. = (n/2)(first term+last term) =(5/2)(525+945) =3675 And that's the explanation... Hope it Helped all...:-) |
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| 6. |
two things are sold at the price one at a loss of 10% and the other is at a profit of 10% what is loss or gain p.c |
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Answer» Step-by-step explanation: After getting the PRICE after loss and gain the sp and TGE total price will be same |
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| 7. |
Model on application of maths for class 7 |
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Answer» Step-by-step EXPLANATION: |
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| 8. |
23, 115, 805, 7245, 79695, ? |
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Answer» 23*5= 115 |
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| 9. |
Model on application of maths |
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Answer» ANSWER:COPY from YOUTUBE or google Step-by-step EXPLANATION: |
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| 10. |
Hey guys i have a test tmrw i hope you can help me please solve the below question pleaseeeeeif (x^2+3x+5)(x^2-3x+5)= m^2 -n^2 then m can be? |
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Answer» The LHS is in the form (a+b)(a-b) We KNOW, (a+b)(a-b)=a²-b² So, LHS • (x²)²-(3x+5)² x^4 - [(3x)² + 5² +2(3x)(5)] x^4 - [9x² + 25 + 30X] x^4 - 9x² - 25 - 30x Now, LHS = RHS m² - n² = x^4 - 9x² - 25 - 30x m² = x^4 - 9x² - 25 - 30x + n² m = √ x^4 - 9x² - 25 - 30x + n² Hope it helps!!! :) |
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| 11. |
Log x upon B minus is equal to log Y upon 3 minus is equal to log Z upon a minus b |
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| 12. |
10^n-1111=sum of the digits are 879,find n? |
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Answer» |
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| 13. |
Why do the number of spammers increases as mid night approaches? |
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| 14. |
7½.8½number system chapter9th std |
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Answer» (7×8)1/2 561/2 .... MARK as BRAINLEAST |
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| 15. |
1 billion is equal to 100 million |
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Answer» Answer: A BILLION is equal to a THOUSAND MILLIONS (1,000 X 1,000,000) |
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| 16. |
Write two rational numbers between root2 and root3 |
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Answer» Step-by-step EXPLANATION: √2 = 1.4142... √3 = 1.7321... 1.45, 1.5, 1.55, 1.6, 1.65, 1.7 LIES between √2 and √3 Hence the RATIONAL NUMBERS between √2 and √3 are: 145/100, 15/10, 155/100, 16/10, 165/100 and 17/10 |
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| 17. |
The velocity of a body increases, at a constant rate, from 10 m/s to 25 m/s in 6 minute. Find the acceleration and the distance travelled. |
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Answer» Step-by-step EXPLANATION: |
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| 18. |
What is defn of point? |
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Answer» Answer: A point in geometry is a location. It has no size i.e. no WIDTH, no length and no depth. A point is SHOWN by a DOT. A line is defined as a line of POINTS that extends INFINITELY in two directions. It has one dimension, length. Step-by-step explanation: |
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| 19. |
The number of straight lines that can connect x points is given by the equationy = x(x-1)/2. How many points does a figure have if only 15 lines can be drawnconnecting them? |
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| 20. |
if alpha,beta are the roots of the equation x^2+5x+5=0 then the quadratic equation whose roots are 2alpha and 2beta |
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Answer» Please FOLLOW me |
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| 21. |
If x+y = 18 and x = 5y,find x |
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Answer» Step-by-step EXPLANATION: |
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| 22. |
2) Guddi was standing on a road near a mall.She was 1000m away from the mall and ableto see the top of the mall from the road insuch a way that top of the tree, which is inbetween her and the mall, was exactly in lineof sight with the top of the mall. The treeheight is 10m and it is 20m away from Guddi.How tall is the mall? |
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Answer» Answer: Mall is 500 m TALL Step-by-step explanation: Guddi was standing on a ROAD NEAR a mall. She was 1000m away from the mall and able to SEE the top of the mall from the road in such a way that top of the tree, which is in between her and the mall, was exactly in line of sight with the top of the mall. The tree height is 10m and it is 20m away from Guddi. Tan θ = Perpendicular / Base Angle with tree top & Mall top is same Tanθ = Height of tree / Distance of tree from guddi => Tanθ = 10/20 => Tanθ = 1/2 Tanθ = Height of Mall / Distance of Mall from guddi => 1/2 = Height of Mall / 1000 => Height of Mall = 500 m Mall is 500 m Tall |
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| 24. |
6. निम्नलिखित डेटा की सवयुनेस की गणना करे।x: 5, 10, 156. Calculate the skewness of following data.x: 5, 10, 15 |
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Answer» Step-by-step EXPLANATION: the SKEWNESS of following data. LET 5,10,15 |
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| 25. |
Formula of arithmetic |
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Answer» formula for NTH term is Step-by-step EXPLANATION: TN =a+(n-1)d |
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| 26. |
9x*4 +4x*3-2x*2 +x+10 : 3x*2 +2x+5 |
| Answer» 9X*4 +4X*3-2x*9x*4 +4x*3-2x*2 +x+10 : 3X*2 +2x+52 +x+10 : 3x*2 +2x+5 | |
| 27. |
If f(x)=x^4-2x^3+3x^2-ax+8 is a polynomial such that when it is divided by (x-1) the remainder is 5. Determine the remainder when f(x)is divided by (x+1)IF YOU ANSWER FAST AND CORRECT YOU WILL MR MARKED THE BRAINLIEST |
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Answer» F(1)=1-2+3-a+8=5 Then a=5 Therefore f(-1)=1+2+3+5+8=19 |
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| 28. |
Find the solution by substitution method X+y=7 and 3x-y=1 |
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Answer» Step-by-step EXPLANATION: BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST |
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| 29. |
0 is the ------------- of a rational number |
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Answer» Answer: Step-by-step EXPLANATION: → The definition of a rational number is 'A number that can be written in the form a/B, where a and b are integers with no common FACTORS and b is NOT zero'. 0 can be written as (for example) 0/2. Both 0 and 2 are integers, they have no common factors, and the denominator is NOT zero. |
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| 30. |
When teams of same size are formed from three groups of 512,430 and 489 students separately , 8,10,9 students are left out , what could be the largest size of the team? |
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Answer» Lets subtract 8,10,9 from their respective numbers. 512-8 = 504 430-10= 420 489-9 = 480 ATQ, All the three groups each with 504, 420 and 480 are SUBDIVIDED into SMALLER groups such that each group consists of equal number of people and no more people are left. So we have to find the HCF of these numbers 2 | 504, 420, 480 2 | 252, 210, 240 3 | 84, 70, 80 84, 70 and 80 don't share a COMMON factor. Hence HCF = 2 × 2 × 3 = 12 Hope it HELPS!!! |
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| 31. |
If x+y =18 and x = 5y, find x |
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Answer» |
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| 32. |
एक गाय को एक 14 मीटर लंबी रस्सी से एक खूंटे पर बाँधा गया है तो गाय कितने क्षेत्र मे चर सकती है |
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| 33. |
If z+1/4 =1 1/4 find 3z |
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Answer» 4z+1=11 4z=10 z=10/4 3 multiply on both side- 3z=30/4 PLEASE follow me✌️✌️ ✍️✍️ please mark it brainlist ANSWER.. |
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| 34. |
Analogies question 21:3::574:? |
Answer» The missing value is 82Step-by-step EXPLANATION: Given : Let the missing value be x So, So, So, The missing value is 82 #Learn more: At a certain time a TREE 6m high casts a shadow of LENGTH 8 METER. at same time a POLE casts a shadow of length 20 m.find length of shadow |
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| 35. |
If 2 into 2 equals to 2 + 2 then why minus 2 into minus 2 is not equal to minus 2 plus minus 2 |
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Answer» Step-by-step EXPLANATION: BRAINLIEST BRAINLIEST BRAINLIEST |
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| 36. |
F(v)= v^2+4root3v-15 |
Answer» V^2 + 4√3 v - 15 = 0V^2 -√3v +5√3v -5√3 ×√3 =0(v-√3)(v+5√3) = 0V= √3 and -5√3HOPE this helps❤ |
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| 40. |
Find the value of tan-60° + 3cos30° |
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Answer» Answer: 3(√3) Step-by-step EXPLANATION: tan60° = sin60°/cos60° = (√3/2)/(1/2) = √3 cos30° = sin60° = 2/(√3) 3 X cos30° = 3 x 2/(√3) = 2(√3) tan60° + 3cos30° = √3 + 2(√3) = 3(√3) |
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| 41. |
Check whether 9991 is a prime number or not. |
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Answer» No, it is not. Step-by-step explanation: |
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| 42. |
. Let A and B be two sets such that n(A)=20, n(A∪B) =42 and n(A∩B)=4.Find (i) n(B) (ii) n(A-B) (iii) n(B-A). |
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Answer» Step-by-step explanation: for n(B) n(B)=n(A)-n(A∩B)-n(A∪B) for (ii) n(A)-n(A∩B) for (iii) n(B)-n(A∩B) |
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| 43. |
if alpha, beta are the roots of the equation X square + 5 x + 5 equal to zero then the quadratic equation whose roots are 2 alpha and 2 Beta is |
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Answer» Step-by-step EXPLANATION: |
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| 45. |
The area of a right angled triangle is 600sqcm if the base of the tri exceeds the altitude by 10cm find dimensions of tri |
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Answer» Answer: Step-by-step explanation: → let the altitude of the triangle =x cm → BASE = (x+10) cm → AREA = 600 sq cm → 1/2× base×altitude = 600 → x(x+10)= 2*600 → x²+10x -1200=0 → x² +40x-30x-1200=0 → x(x+40)-30(x+40)=0 → (x+40)(x-30)=0 → x+40=0 or x-30=0 → x= -40 or x= 30 → x should be negative → x=30 → base = x+10 =30+10=40 → by PYTHAGORAS theorem → hypotenuse square = base square+ altitude square = (40)² + (30)² =1600+900 =2500 → hypotenuse =50 → THREE sides of a triangle → 30cm,40cm and 50cm. |
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| 46. |
Answer with full solution |
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Answer» Step-by-step EXPLANATION: BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST |
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| 48. |
If X equals to root 5 + root 2 upon root 5 minus root 2 and y equals to root 5 minus root 2 upon root 5 + root 2 find the value of 3 X square + 4 x y + 3 y square |
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Answer» Answer: 677 Step-by-step EXPLANATION: it's a PHOTOGRAPH! !!!! hope it will help you! plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz MARK the answer as BRAINLIEST! !!!!!!! |
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| 50. |
What is the smallest number which when decreased by 8 is divisible by 21, 27, 33, and 55?a.1490? |
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Answer» Answer: The required NUMBER which when decreased by 8 is divisible by 21, 27, 33, and 55 is 10403. Step-by-step explanation: To find : What is the smallest number which when decreased by 8 is divisible by 21, 27, 33, and 55? Solution : We find the LCM of 21, 27, 33, and 55. 3 | 21 27 33 55 3 | 7 3 11 55 7 | 7 1 11 55 5 | 1 1 11 55 11 | 1 1 11 11 | 1 1 1 1
when decreased by 8, So we add 8 in the LCM of the numbers. i.e. 10395+8=10403. Therefore, The required number which when decreased by 8 is divisible by 21, 27, 33, and 55 is 10403. |
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