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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. |
(a) Calculate V238 + 6.4 writing down your full calculator display,(b)Write your answer to part (a) conect to 4 decimal places |
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Answer» yifypueh0of711y802xr2rd |
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| 2. |
Write the first five terms of sequence an=n(n +2) |
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Answer» a, a+d, a+2d, a+3d, a+4d |
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| 3. |
M-m-1=1-m-2 2 3. please solve my question |
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Answer» Step-by-step EXPLANATION: HOPE THIS HELPS YOU PLZ MARK ME AS BRAINLIEST✌✌ |
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| 4. |
Find the cost of 23 meters of cloth if 5 meter of cloths cost RS 625 |
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Answer» Step-by-step explanation: 5 METRE= 625 1 metre =625/5=125 23 metre= 23*125 =2875 RS |
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| 5. |
Find the product of 18find the product of 18 upon 30 |
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Answer» Answer: two numbers are 15 and 18, their PRODUCT is 15x18 = 270 and so is the product of their HCF and LCM. Let us see WHETHER it is so. The factors are 15 = 3x5 18 = 2x3x3 HCF = 3 LCM = 2x3x3x5 = 90 Now HCF * LCM = 3 *90 = 270. Proved. Step-by-step explanation: and please mark me as brainlist |
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| 6. |
style="color:cyan;font-family:cursive;background:black;font size:25px;"> Q. A man is 4 times as old as his son . After 16 years he will. be only twice as old as his son . Find their present ages... [/tex]. |
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Answer» Correct Question - A man is 4 times as old as his son . After 16 YEARS he will. be only twice as old as his son . Find their present ages. Solution - Let the age of the son be x years . So, the age of the man is 4X years . After 16 years, Age Of Son = x + 16 years . Age of Man = 4x + 16 years. Now , we have the FOLLOWING information given - After 16 years he will. be only twice as old as his son . Btw , 4x + 16 = 2(x + 16 ) => 4x + 16 = 2X + 32 => 2x = 16 => x = 8 So, Age of Man = 4x = 32 . Therefore Present Age of Son = x = 8 years. Present Age of Man = 4x = 32 years. |
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| 7. |
if the cordinates of two points are A(3,4) and B(-2,-1) then find 4 (abscissa of A) -3 (ordinate of B) |
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Answer» Here abscissa of A is 3 and ORDINATE of B is -1 THEREFORE 4(3)-3(-1)= 12+ 3= 15 |
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| 8. |
Derive the sum of cubes of first n natural numbers |
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Answer» N(n+1/2)^2 I HOPE that it will HELP you........ |
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| 9. |
SSC TAA + ৪) = ১০% * Bকা , ইআকাম করা হল?।(১)()০)।SSC 102 |
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Answer» I can't UNDERSTAND your QUESTION |
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| 10. |
OT paper of 8 class of 2019 of Sri chaitanya |
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| 11. |
The average weight of 9 persons is decreased by 2 kg,when one of them who weighs 80 kg is replaced by a newperson. What is the weight of the new person?a)72kgb)98 kgc)62kgd)74kg |
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Answer» Step-by-step EXPLANATION: |
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| 13. |
Find the roots of the equation 6root3Xsquare-9X-3root5=0 plzzz do with formula method |
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Answer» Step-by-step explanation: 6√3x²-9x-3√5=0 x=-b+-√b²-4ac\2ax=9+-√81-4(6√3)(-3√5)/2(6√3) |
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| 14. |
write one rational number lying between two number given below and place them on number line 1 by 4 and 1 by 2 |
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Answer» Step-by-step EXPLANATION: so, l.c.m. is 8 8➗ 4 = 2. 1 x 2=2 8 ➗ 2 = 4. 1 x 4 = 4 2/8x3/3=6/24 4/8 x 3/3 = 12/24 so, two number is 7/24 and 8/24 PLZ follow me. |
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| 16. |
हाउ मेनी क्योर फॉर एग्जामिनेशन 2 सेंटीमीटर बराबर 6 सेंटीमीटर 12 सेंटीमीटर इक्वल टू मेक अ परफेक्ट क्यूब एंड फाइंड द साइड ऑफ द क्यूट |
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Answer» jwbzklabeJpbwKxkevozbw lx hejdohdok2vslp3vd sbsoodgsprhhso dbi02gz9pne939 ejJiahwI9dh2 JI s09r ehwipdveod8spwkcsodv shjap2ushoK2vskSns SE know shi we owpnseue haa kjSisiiks skjejii KO se gxoosh |
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| 17. |
By Euclid's Division Lemma, if a=bq+r then r must satisfy: |
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| 18. |
Scott ivests $500 for 7 years at a rate of 1.5 precent per year simple interest.Calculate the value of his investment at the end of 7 years |
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Answer» VALUE OF INVESTMENT AT END OF 7 YEARS IS AS FOLLOWS: Step-by-step EXPLANATION: THIS IS NOTHING BUT ONLY S.I SO, S.I=P×R×T/100 GIVEN,, P=500 DOLLAR R=1.5 T=7 YRS SO, 37,780.02 Indian Rupee is 500 dollar THEREFORE S.I= 37,780.02×1.5×7/100 BY SOLVING YOU WILL GAIN ANS-3,966.9021 THEREFORE THIS IS SIMPLE INTEREST |
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| 19. |
The reciprocal of a negative number is |
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Answer» the RECIPROCAL of a NEGATIVE NUMBER is negative hope it will HELP you |
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| 20. |
Find the roots of the equation 2Xsquare+3X+2=0 plzz do with formula method |
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Answer» the answer of your QUESTION is x=1/2and x=1 |
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| 21. |
If the zeroes of the polynomial f(x) ax cube + 3 bX square + 3b X square + 36 X + d are in AP prove that 2 b cube - 3 ABC + a square d=0. |
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Answer» Answer: Roots of given polynomial is in AP let P- r , P, and P+ r are the roots of f( X) = ax³ + 3bx² + 3cx + d sum of roots = -coefficient of x²/coefficient of x³ P -r + P + P+ r = -( 3b/a) 3P = -( 3b/a) P = -b/a -----------(1) sum of products of two roots = ( P -r)×P + P×(P+r) + (P-r)(P+r) = coefficient of x/coefficient of x³ P² -Pr + P² +Pr + P² -r² = 3c/a 3P² - r² = 3c/a ------------------(2) again , products of all roots = -constant /co-efficient of x³ (P-r)×P× (P+r) = - d/a P³ - Pr² = -d/a ----------(3) now, equation (1) put in EQN (2) , 3(-b/a)² -r ² = (3c/a) r² = 3(b²/a²) -3(c/a) ----------(4) eqn (4) and (1) put in eqn(3) (-b/a)³ -(-b/a)( 3b²/a² -3c/a ) = -d/a -b³/a³ +b/a(3b²/a² -3c/a ) = -d/a -b³/a³ +3b³/a³ -3bc/a² = - d/a 2b³/a³ -3bc/a² = -d/a 2b³ -3ABC = -da² 2b³ -3abc + a²d = 0 hence, proved /// Step-by-step explanation: ●●●mark as BRAINLIEST answer●●● |
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| 22. |
Prove that 2√3 is an irrational -------- 5 |
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Answer» We can prove it by contradictory method.. We assume that 2 + √3 is a rational number. => 2 + √3 = p/Q , where p & q are integers, ‘q’ not = 0. => √3 = (p/q) - 2 => √3 = (p - 2q)/ q ………… (1) => here, LHS √3 is an irrational number. But RHS is a rational number.. Reason- the difference of 2 integers is always an integer. So the numerator (p- 2q) is an integer. & the denominator ‘q’ is an integer.&‘q’ not = 0 This WAY, all conditions of a rational number are SATISFIED. => RHS (p- 2q)/q is a rational number. But , LHS is an irrational. => LHS of….. (1) is not = RHS. => Our assumption, that 2 + √3 is a rational number, is incorrect.. => 2 + √3 is an irrational number ItzDopeGirl❣ |
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| 23. |
Solve the given quadratic equation by completing square method 2x^2 + 13 x + 15 =0 |
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Answer» Answer: x= -3/2 or -5 Step-by-step explanation: 2x^2+13x+15=0 we KNOW that the completing SQUARE METHOD is x=-b+-√b^2-4ac/2a now,b^2-4ac=49 so x=-13+-√49/2×2 =-13+-7/4 now,x=-13+7/4= -6/4 = -3/2 or,x=-13-7/4 = -5 |
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| 24. |
Which of the following is the number of zeros in the square of 100 ?A. 3B. 4 C. 5 D. 2please tell fast it's urgent test is going onanswer should be correct who's ans will be correct I will mark as brainliest |
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Answer» Answer: 4 Step-by-step explanation: 100^2= 100*100 = 10000 HOPE it WORKS |
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| 25. |
-3 upon 4 + 7 upon -8 = 7 upon -8 + -3 upon 4 verify this |
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Answer» by ASSOCIATIVE PROPERTY of ADDITION |
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| 26. |
Two tangents TP and TQ are drawn to a circle with centre O from an internal point T. if angle PTQ=x and angle OPQ=y, thenPlease step by step kar dijiye koi |
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Answer» We know that, the lengths of tangents drawn from an external point to a circle are equal. ∴ TP = TQ In ΔTPQ, TP = TQ ⇒ ∠TQP = ∠TPQ ...(1) (In a triangle, equal sides have equal angles opposite to them) ∠TQP + ∠TPQ + ∠PTQ = 180º (Angle sum PROPERTY) ∴ 2 ∠TPQ + ∠PTQ = 180º (Using(1)) ⇒ ∠PTQ = 180º – 2 ∠TPQ ...(1) We know that, a tangent to a circle is perpendicular to the radius through the point of contact. OP ⊥ PT, ∴ ∠OPT = 90º ⇒ ∠OPQ + ∠TPQ = 90º ⇒ ∠OPQ = 90º – ∠TPQ ⇒ 2∠OPQ = 2(90º – ∠TPQ) = 180º – 2 ∠TPQ ...(2) From (1) and (2), we get ∠PTQ = 2∠OPQ Hope it HELPS!! Thank u |
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| 27. |
What is perpendicular distance of poini A(15,19) from y axis |
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Answer» Step-by-step explanation: 15 UNITS................ |
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| 28. |
If a function satisfies a relation 2f(x) + f(1/x) = -x then f(2) equals..... |
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Answer» Step-by-step EXPLANATION: Put x=2 2f(2) + f(1/2) = -2 x=1/2 2f(1/2) + f(2) = -1/2 Solving the above eqns f(2)=-7/6 |
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| 30. |
Give reason to show that none of the number given below is a perfect square (i) 2162 |
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| 31. |
Is there any whole number 4such that __×__ =4 and __+__=4 |
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Answer» Answer: 3/4 isn't a WHOLE NUMBER. You can WRITE it as a DECIMAL: 0.75 |
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| 32. |
Prove that 3+5√2 is an irrational number |
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Answer» Assume that the given real number is RATIONAL. This means that the number can be expressed in the form p/q where p and q belong to integers as well as are co-prime. So, 3 + 2root5 = p/q Or, 2root5 = p/q - 3 = (p -3q)/q Or, ROOT5 = (p-3q)/2q ....... (i) Now, (p-3q)/2q is a rational. So, IRRATIONAL number ≠ rational number. This means root5 is rational. But, root5 is an irrational. How?? Assume root5 as rational. So, Root5 = a/b Where a and b are integers and co-primes. So, Squaring both sides:- 5 = p²/q² So, p² =5q² ...... (ii) So, p² has 5 as a factor. So, p also has 5 as its factor for some integer c. Now, p =5c Or, p² =25c² Putting it in (ii) 5q² =25c² Or, q² = 5c² So, q² is a multiple of 5 So, q is also a multiple of 5. Now, Both p and q have a COMMON factor 5 This means they are not co-primes but it is given that they are co-primes. Hence, it's a contradiction which has risen because of taking root5 as rational. So, root5 is irrational. Now, Back to the question. From (i) :- Root5 = (p-3q)/2q So, This is not possible as root5 is irrational and RHS of the equation is rational. As irrational ≠ rational. Hence, it is a contradiction. This has risen because of taking the given number (3 + 2root5) as rational number. This IMPLIES that 3 + 2root5 is an irrational number. itzDopeGirl❣ |
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| 33. |
9t2 (t+7t3), find the product |
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Answer» Step-by-step explanation: 9t^2 (t+7t^3) <U>=9t^3+7t^5 HOPES IT HELPS U ❣❣ PLEASE MARK ME AS A BRAINLIEST |
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| 34. |
Evaluate 10x (-13) +7 X (-13) |
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Answer» Answer: 10×(-13)+7×(-13) = (-13)(10+7) = (-13)(17) = -221 |
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| 35. |
Which colour received 1by5 of the votes blue25 %red35 %green 20 %yellow14 %others6 % |
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Answer» green Step-by-step explanation: |
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| 36. |
Two numbers differ by 150 the larger one is 4 times larger than smaller . find the smaller number |
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Answer» GIVEN THERE ARE 2 NO.S Step-by-step explanation: THEREFORE LARGER NO. =X×4=4X NOW GIVEN~4X-X= 150 THEREFORE 3X=150 X=150/3 VALUE OF X = 50 MEANS SMALLER NUMBER =50 AND LARGER NO.=50×4=200 VERIFICATION: 200-50= 150 AS GIVEN IN QUESTION PLS follow me |
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| 37. |
In my board exam...of maths class 10 it was asked to figure out how many of the given expressions were polynomials. the second part of the question asked to figure out how many were quadratic polynomials. The answer of first part was 3 and second part was 1. But I answered in the first part that there was only 1 expression which is not a polynomial and wrote that expression....In the second part I answered that there are two quadratic polynomials and wrote them...one of them is correct... The complete question of two parts was of two marks. Please tell if barely any mark will be awarded or not. |
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Answer» Step-by-step EXPLANATION: ____$$___ |
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| 39. |
(a) The price of a book in from 52 50 to $265.Calculate the percent |
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Answer» PLEASE ellaborate the question Step-by-step EXPLANATION: |
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| 40. |
Solve215 - +16+14. 3-1243 |
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Answer» do it by yourself Step-by-step EXPLANATION: |
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| 41. |
Write two distnct integers whose sum is equal to one of the integers |
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Answer» Answer: 0 and 1 Step-by-step EXPLANATION: |
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| 42. |
Find the difference between the place values of 1 and the numbers 1768905 |
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Answer» Place values of 6 = 60000 Difference between the place value of 1 and 6 in 1768950 = 1000000 - 60000 = 940000 like and follow me |
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| 43. |
Lim [sin8x/tan4x]x->0 |
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Answer» 2 Step-by-step explanation: lim. sin8x/tan4x x->0 dividing numerator and denominator by 8x so lim x->0 8xsin8x/8xtan4x we know sinx/x lim x->0 is 1 sio sin8x/8x=1 8x/tan4x lim->0 using l hôpital rule differentiation of 8x->8 differentiation of tan4x->sec^2 4X. 4 thus the answer will be 8/sec^2 4x.4 substitution of x=0 8/4=2 thanks |
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| 44. |
The sum of first n terms of an A.P.is3n2 + 4n. Find the 25th term of this A.P. |
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Answer» Given Sn = 3N2 + 4n S1 = 3×1 + 4×1 = 7. S2 = 3×4 + 4×2 = 12 + 8 = 20. Therefore FIRST term a1 = 7 & Second term A2 = 20 - 7 = 13 and d = 13 - 7 = 6. Now 25th term an = 7 + ( 25 - 1) 6 a25 = 7 + 24 x 6 a25 = 151. itzDopeGirl❣ |
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| 45. |
Solve these two questions. It's urgent. |
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Answer» Step-by-step explanation: I can't UNDERSTAND your HAND WRITING., mate.. please write it CLEARLY.. |
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| 46. |
Find (-57) ÷ (- 19) plz soly |
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Answer» Answer: 3 Step-by-step EXPLANATION: -57/-19 = 57/19 = 3 HOPE IT HELPS YOU PLEASE MARK ME AS THE BRAINLIEST |
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| 47. |
Which one of the following polynomial is one variable:1st- y square + 2 root 32nd-3 root x + root 2x3rd-x minus 3 upon x4th-x to the power 15 + p to the power 4 + z to the power 10. |
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Answer» Answer: 123................. |
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| 48. |
The life time of 10 electric bulbs (in thousands of hours) are as follows: 2, 3, 2, 3, 2, 3, 4, 4, 3, 4 Determine an unbiased estimate of the population mean and standard deviation. |
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| 50. |
question of moral science chater 3. positive attitude. question. How should you react when your 'ego' is hurt? |
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Answer» Answer: You should react calmly. If a PERSON hurt your ego you should stay calm and try not to loose your TEMPER. You just move away from that PLACE. Then that person will realise that you are not affected by his CRUEL behaviour. |
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