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. |
Solve this puzzle a 10b 8c 6d 15 |
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Answer» 10 agar seedhi WALI LINE dekhi jaaye to 8+7=15 right. then, similarly 13+2=15 9+6=15. , 5+10=15. so , the answer will be 10 I HOPE my answer will HELP you. thanks |
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| 2. |
Prove that one of any three consecutive positive integer is divisible by 3 |
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Answer» Step-by-step explanation: LET 3 consecutive positive integers be N, n + 1 and n + 2 . Whenever a number is divided by 3, the REMAINDER we get is either 0, or 1, or 2. : Therefore: n = 3p or 3p+1 or 3p+2, where p is some integer If n = 3p = 3(p) , then n is divisible by 3 If n = 3p + 1, then n + 2 = 3p +1 + 2 = 3 p + 3 = 3 ( p + 1 ) is divisible by 3 If n = 3p + 2, then n + 1 = 3p + 2 + 1 = 3p + 3 = 3(p + 1) is divisible by 3 Thus, we can STATE that one of the numbers among n, n+1 and n+2 is always divisible by 3 Hence it is solved. |
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| 3. |
Q25. Product of two co-prime numbers is 117. Their l.C.M should be |
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Answer» d gigufjtyldmxnzgdjcjgj dcvotig9 |
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| 4. |
Q15. Find the least number which is exactly divisible by 12, 15, and 20. |
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Answer» Step-by-step explanation: |
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| 5. |
40. If 5x - 4 = 2x/5, then what is the value of 2X - 7 ? |
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Answer» -121/7 Step-by-step explanation: 5x-4 = 2x/5 5(5x-4) =2x 25x -20 = 2x 23x =20 x = 20/23 2*20/23 -7 40/23-7 = 40-161/7 = -121/7 |
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| 6. |
In a parallelogram ABCD, the sumof two adjecent angle a)90 b) 360 c)180 d) 270 |
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| 7. |
Rationalize the denominator:- (2√5+3√2) / 2√5 - 3√2 |
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Answer» Answer: 19 + 6√10 Step-by-step EXPLANATION: Mutiply both numerator and DENOMINATOR by (2√5+3√2). Now the equation is [(2√5+3√2)^2] / (2√5 - 3√2)*(2√5+3√2) The denominator is of the form (a+b)(a-b) which equals a^2 - b^2. So now the equation is [(2√5+3√2)^2] / [(2√5)^2 - (3√2)^2]. The numerator is of the form (a+b)^2 which equals a^2 + b^2 + 2ab So now it is [(2√5)^2 + (3√2)^2 + 2*2√5*3√2] / [ 20 - 18 ] = { 20 + 18 + 12*√2*√5 ] / 2 = (38 + 12√10) / 2 = (38/2) + [(12√10)/2] = 19 + 6√10 |
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| 8. |
TSA of a right circular cone |
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Answer» Step-by-step EXPLANATION: πr(r+l) |
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| 9. |
Prove that 5-2root3is an irrational no |
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Answer» ASSUME that 5-2 root 3 is rational 5-2 root 3 = a/b , where a and b are integers . -2 root 3 = a/b - 5 2 root 3 = 5 - AB 2 root 3 = 5b/b - a/b root 3 = 5b - a / 2b we know that a, b , 2 and 5 are integers and they are also rational THEREFORE root 3 will be rational but we know that root 3 is irrational there is a contradiction so, 5 - 2 root 3 is an irrational number hope it helps |
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| 11. |
The type of triangle in which the 3 medians are of equal lengths? |
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Answer» EQUILATERAL TRIANGLE is your answer. all will be of same LENGHTS |
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| 12. |
HCF of two consecutive number is 1 and hence such number are ________ numbers.if you sure about your answer that your answer is correct then send only |
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Answer» 2 is the 2nd CONSECUTIVE HCF number. Hope it WOULD be right answer. |
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| 13. |
Please solve this sum . please solve step by step explanation |
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| 14. |
How many numbers between 1 and 400 are exactly divisible by 7. |
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Answer» The concept of arithmetic progressions shall be applied here. ⚫So , the first number divisible by SEVEN is 1. Therefore our first term (a) becomes 7. ⚫Continuing the series we have , This forms an AP with →first term a = 7 →Common Difference d = 7 (a2 - a1) → Last term L = 399 → Number of TERMS (n) = ? ✔Using the formula , => L = a + (n-1) d ↪399 = 7 + (n-1)7 ↪392/7 = n - 1 ↪56 = n - 1 |
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| 15. |
Two numbers are said to be ________ if they do not have any common factor.if you sure about your that your answer is correct then send only |
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| 16. |
calculated answer with pie chart✌✌✌✌Collect data of major river systems in India on the basis of pollution level. Represent it through a pie chart. Suggest any two ways for reducing pollution level of rivers through a presentation. |
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Answer» Here's your answer!! the following data may be a bit old... the data may be PRESENTED using histograms. Sabarmati : 4 mg/L or BODBOD : BIOCHEMICAL oxygen demand.In 2010 the statistics are: # Markanda: 590 mg Oxygen /liter BOD Amlakhadi : 353 Kali: 364 Yamuna canal: 247 BOD Yamuna near Delhi: 70 Betwa: 58 The above are the worst affected. Near cities and major towns the rivers are BADLY affected. In rural areas they are better.BOD levels of 8 mg/L or less is acceptable... below 2 mg/L is good water. # Ganga : at Rishikesh 1.5 mg Oxygen/L. at kanpur : 5 mg/LBrahmaputra: At gauhati - very high. at other locations : 2 mg /L or less Tapi : 2 mg/L in some areas. in cities and towns, about 13 mg/L BOD Narmada : less than 2.5 mg/L BOD Mahanadi : less than 1 mg O / Litre to 4 in cities or chattisgarh Krishna: 1 to 3 in many areas... 10 in many cities/towns.... Around Pune: 28 mg/L Cauvery : GENERALLY from 1 mg/L to 3 mg/L Ganga : 4 - 8 mg / liter BOD Godavari : 5 BOD Vitharini (Bitarni) : 2 mg/l Narmada : 2 mg/l Mahi : 2.5 mg//l |
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| 18. |
Ycube+ysquare+2y+3÷y+ 2 |
Answer»
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| 19. |
The mean, median and mode of given data of scores are 21,23 and 22.if 3 is added to each score then what are the new values of mean, median and mode respectively? |
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Answer» arranging the numbers in ascending order :- 21,22,23 21+22+23. 66 __________= -------- = 2 3. 3 according to the question, we have to ADD 3. So, 2+3 =5 So, mean of the number is 5. Median of the number is :- arranging in ascending order= 21,22,23 Median of the number is 22. According to the question, we have to add 3. So, 22+3= 25. median of the number is 25. Mode of the number Arranging into ascending order = 21,22,23 In this, all the numbers are written only one time .So, the answer is 0 According to the question, we have to add 3 . = 0+3 = 3 Mode of the number is 3. hope it HELPS. Mark me as branelist. |
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| 20. |
Find the product using properties 12×(-68)+12(-28) |
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Answer» -1152 Step-by-step explanation: 12(-68-28) 12(-96) -1152 this is your answer |
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| 21. |
Find whether 5+3x is a factor of 3x^2+11x+10 |
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Answer» Answer: Step-by-step EXPLANATION: to check whether 5 + 3x is FACTOR or not we use 5+3x =0 x= -5/3 3x² +11x +10 3*25/9 + 11*(-5/3) +10 25/3-55/3+10==> 0 So 5 + 3x is factor of GIVEN polynomial |
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| 22. |
TRY THESEWrite the rational number for each point labelled with a letterAB CD E? ? 6 7 ? ? 10 115 512I HG |
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Answer» Answer:
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| 23. |
Simplify the following : (11√2+√2) (√2+3√2) |
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Answer» REFER to the ATTACHMENT |
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| 24. |
Express the following as sum of consecutive integers 21 square |
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Answer» Step-by-step EXPLANATION: let the 2 CONSECUTIVE INTEGERS be x and x+1 x+(x+1)=441 2x+1=441 2x=440 x=220 x+1=221 Therefore the consecutive integers are 220 and 221 |
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| 25. |
A two digit number is obtained by multiplying thesum of the digits by 8. Also, it is obtained bymultiplying the difference of the digits by 14 andadding 2. Find the number. |
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Answer» Answer: let 10x+y be the number so X and y are the digits according to the question 10x+y=(x+y)*8 or 2x-7y=0 (eq 1) 10x+y=(x-y)14+2 or 4x-15y= -2 (eq 2) from eq 1 and 2 we get (2x-7y=0)2 4x-15y= -2 so, 4x-14y=0 4x-15y=-2 y=2 putting y VALUE in eq 1 we get 2x-7*2=0 2x=14 x=14/2=7 so, x=7 and y=2 so 72 is the no. Step-by-step EXPLANATION: |
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| 26. |
Find the product using properties of multiplication 849 X 205 |
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Answer» Answer: 174,045 Step-by-step EXPLANATION: |
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| 28. |
Tan 35 tan 40 tan 45 tan 50 tan55 |
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Answer» Answer: Hey mate, The ANS is 1.... |
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| 29. |
TRY THESEWrite the rational number for each poini labelled with a letterв сDE0 ? 2 3 ? ? 6 I ? ? 10 11 12IH G |
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| 30. |
find the zeroes of the quadratic polynomial x ^2-2x-3 and verify the relationship between the zeroes and the coefficient of the polynomial. |
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Answer» [REFER the ATTACHMENTS ] |
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| 31. |
Use number line and add the following integers:9+(-6) |
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Answer» ANSWER is 3 Step-by-step explanation: 9+(-6) 9-6 =3 |
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| 32. |
Which number can be show only has a line |
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Answer» infinite no. according to me if not PLEASE TELL me the CORRECT answer |
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| 33. |
Designer uses 2 by 3 metre of cloth to stitch dance costume if 150 such dance costumes are needed then how many metres of cloth will the designer be uses?{ the ans is 100 bt I want the explanation part} |
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Answer» Answer: of course the answer is 100. Step-by-step EXPLANATION: ist MULTIPLY 150 by 2 and then DIVIDE it by 3 here will be your answer 100. |
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| 34. |
The area of a rectangular field whose length is 2450is twice it's breadth also find its perimeter??? |
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Answer» your answer is in this ATTACHMENT. |
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| 35. |
Factorise 5x^2-20xyplz help me |
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Answer» Answer: hi mate... (5x^2-20XY) 5x (X-4y)
Step-by-step EXPLANATION: 5 and x are common between 5x^2 & 20xy. So , TAKE out the common factors and the remaining no. will remain as it is in the BRACKET |
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| 36. |
(0.2×0.16)+(0.6×0.91)/(0.2×0.3) |
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Answer» Answer: 0.032+0.546÷0.06 =9.132 |
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| 37. |
The sum of two integers is 24 if one of them is -9 then other is______ |
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Answer» the other will be (-15)....... |
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| 38. |
Sec⁴Q- sec²Q= tan⁴Q + tan²Q |
Answer» HOPE it helpsplzz MARK BRAINLIEST |
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| 39. |
Factorise (i) 64y3 + 125z3 |
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Answer» Answer: hii mate... 64Y3 + 125z3 now we know that a^3+b^3 = (a+b) (a^2+b^2-ab) = (4y+5z) (16y+25z-20yz) $o, (4y+5z) ( 16y+25z-20yz) is the answer. Hope it HELPS u... |
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| 40. |
X+y =17+? where total is 20 , 2×15+x =20+x |
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Answer» Answer: -10 = x -10+y = 17+3 y = 20+10 = 30 |
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| 41. |
Find the area of given quadrilateral (brainteaser) |
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Answer» Answer: Five congruent squares are put TOGETHER without gaps or overlap to FORM a figure SHAPED like a plus SIGN. The perimeter of the figure is 72 cm. FIND the area of the figure, in sq cm |
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| 42. |
How to convert improper fraction to proper fraction?? Please help me... |
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Answer» Answer: IMPROPER fraction: 4/3 Step-by-step explanation: A proper fraction has two components, the whole. plus other parts of the whole. So ONE and one third is one whole, plus one third. An improper fraction includes the whole and the part in the numerator. Remember that a whole, or 1, is the same as 3/3 in this EXAMPLE. 4/3= 3/3 (one whole) + 1/3 (one third) You can model fractions creatively by CUTTING up circles of PAPER, or pie, or pizza! Whatever you feel like. :) |
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| 43. |
Solve for X and y 139x +56y=641; 56x+139y=724 |
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Answer» Step-by-step EXPLANATION: sstisldyiesdjeei ixxfvbnn |
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| 45. |
Write 23.426 in the form p/q |
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Answer» 23.426 = 23426/1000 = 11713/500 hope it HELPS |
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| 46. |
TRY THESEWrite the rational number for each point labelled with a letter.AB CD E0 ? 2 3 ? ? 6 6 7 7 ? ? 10 11 12NI HG |
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Answer» Answer: Step-by-step EXPLANATION: |
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| 47. |
If x=y and w=z, prove that l||m |
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Answer» let l||m and line with angle X&y be transversal. then x=y(GIVEN)(corresponding angle) so l||m |
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| 48. |
Estimate the sum to the nearest hundred 3280 + 4395 |
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Answer» 3280 to the NEAREST HUNDRED =3300 4395 to the nearest hundred =4400 3300+4400=7700 |
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| 49. |
The man who knew infinity movie review in short not long 100 to 150 words |
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Answer» the man who knew infinity movie review in short not long 100 to 150 words The man who knew infinity movie reviewStep-by-step explanation: The Man Who Knew Infinity is a BIOPIC that recounts the life and times of Ramanujan.He was a self-taught Indian Mathematician and he was thought to have the ability to decipher the very fabric of existence. It's an extraordinary story that comes almost a century after Ramanujan's early and tragic death after contracting tuberculosis 1920. Ramanujan was not only a mathematical prodigy by the age of 11, he but he could mentally compute COMPLEX permutations in a fraction of a second. Many people however could not fathom his genius. Even the Cambridge scholars who elected him as a Fellow of the Royal Society and ALSO a Fellow of Trinity College.He had no formal training in mathematics. The movie is based on this true story and it was adapted from a 1991 book of the same title, writer/director Matthew Brown begins the film in 1914 Madras . Ramanujan (DEV Patel) comes from a poor BRAHMIN family.In this setting even writing paper is a luxury. He was seen frantically scribbling theorems on slate before sending his work to scholars at Cambridge. Cambridge academic G. H. Hardy (Jeremy Irons) was so impressed by his theories, that he invited Ramanujan to study in England as his protégé and also as the missing link since Isaac Newton. |
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