Explore topic-wise InterviewSolutions in Current Affairs.

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 cube minus 1 by a cube minus 2 a plus 2 by a​

Answer»

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2.

The coefficient of x in the eq iswas wrongly written as 17 in the place of 13 and the roots formed were -2 and -15. The roots of the correct eq. are ?Hint - we can do it by product and sum of roots, but I m unable to to...plz helpNo spamming ​

Answer»

<P>Answer:

x = -3 or x = -10

Step-by-step explanation:

GIVEN =>

coefficient of x² = 1

coefficient of x = 17 ( taken WRONGLY )

CONSTANT = q

roots of EQUATION = - 2 , - 15

=> we know , product of roots = constant/coefficient of x²

=> -2 × -15 = q / 1

=> 30 = q

now , the equation becomes =>

+ 13 x + 30 = 0

(given that , correct value of p = 13 )

=> x² + 13 x + 30 = 0

=> x² + 10x + 3x + 30 = 0

=> x ( x + 10 ) + 3 ( x + 10 ) = 0

=> ( x + 10 ) ( x + 3 ) = 0

so , EITHER ( x + 10 ) = 0

=> x = -10

or ( x + 3 ) = 0

=> x = -3

3.

Hey❤100 points❤⭐Try this Question⭐Best of Luck⭐​

Answer»

ANSWER:

Answer is in the ATTACHMENT.

4.

In a quadrilateral ABCD AB is equal to 45 CM CD is equal to 25 CM AC is equal to 30 cm BAC is equal to 90 degree and ac is equal to 90 degree find the area of a quadrilateral ABCD

Answer»

ANSWER:

Here is your answer

PLEASE MARK as BRAINLIEST

5.

How can we find the answer of 1/19 within one minute upto the last decimal place without using calculator?​

Answer»

Answer:

1/19=0.052631578947368421 it HELP U

6.

Solve with full explanation Q.no. 6Urgently neededDont dare to spam...​

Answer»

ANSWER:

if it HELPS you PLEASE MARK it as BRAINLIEST

7.

Hey guys I have an exam tmrw i need help pleaseeeeeeplz answer the question belowif x + 2y + 3z = 0 then the value of x³+8y³+27z³ is?​

Answer»

Answer:

i think 3XYZ

We know that X3 + y3 + z3 3xyz = (x + y + z) (x2 + y2 + z2 xy yz zx)

Putting x + y + z = 0, x3 + y3 + z3 3xyz = (0)

(x2 + y2 + z2 xy yz zx) x3 + y3 + z3 3xyz = 0 x3 + y3 + z3 = 3xyz

8.

If xsin^3a+ycos^3a=sina cosa and x sina=y cosa then prove that x^2+y^2=1

Answer» CHECK the RD SHARMA
9.

Clasdify the following polynonials as linear , quadratic ,cubic and bi -quadratic polynomials a)x+x²+4. b)3x-2. c)3y. d)7t⁴+4t³+3t-2.

Answer»

ANSWER:

a) quadratic

b) linear

c) linear

d) bi - quadratic

I THINK IT WILL HELP YOU AND PLEASE MARK ME AS BRAINLIEST. AND ALSO FOLLOW ME.

10.

1+3+3^2--- to n th term =3^n-1/2

Answer»

TN = 3^(n-1)

SN = 3^0 +3¹ + 3² +...

using sum of gp formula

Sn = a(r^n -1)/(r-1)

Sn = 1(3^n-1)/(3-1)

= (3^n - 1)/2

11.

(iii) tan 15° + cot 15° = 4​

Answer»

GIVEN Tan 15 + cot 15

= sin 15/cos 15 + cos 15/sin 15

= (sin^2 15 + cos^2 15)/sin 15 cos 15

= 1/1/2 sin (15 + 15) - sin(15 - 15)

= 1/(1/2 sin 30)

= 2/sin 30

= 2/ (1/2)

= 4.

LHS = RHS.

12.

Can i write log (A+B) = log A + log Bie:- log (A*B)​

Answer»

i KNOW this only.........HOPE it HELPS u

mark it as BRAINLIEST

13.

the average of 20 values is 18. if 3 is substracted from each of the value then the new average will be​

Answer»

ANSWER:

The NEW VALUE WOULD be 18-3=15

14.

2. Represent the following situations in the form of quadratic equations :(1) The area of a rectangular plot is 528 mı?. The length of the plot (in metres) is onemore than twice its breadth. We need to find the length and breadth of the plot.​

Answer»

LET the BREADTH of the rectangle is X then the LENGTH of rectangle is 2x+1 .the product of length and breadth EQUAL to 528.now why solving quadratic( 2x+1)*x=528 we get X

15.

The difference between the present ages of Kapil and Jayesh is 6 years. The ratio between their ages after 4 years will be 3 : 4. What is the present age of Jayesh?

Answer»

Answer:

24

Step-by-step EXPLANATION:

difference between jayesh and kapil=6

after 4 years

the RATIO of their AGES are 3:4

so their ages after 4 years are

kapil=3x+4

jayesh=4x+4

difference=(3x+4)-(4x+4)

=3x+4-4x+4=6-4

=-x+8=2

-x=2-8

-x=-6

cut both the -

x=6

jayesh=4x

4×6

=24 years

16.

Constant zero solution of linear ordinary differential equation is calledA. Trival solution B. Bypass equationC. Logical equationD. Singular equation

Answer»

Answer:

Constant zero SOLUTION of LINEAR ordinary DIFFERENTIAL EQUATION is called singular equation

17.

(x^a-b)*(x^b-c)b+c*(x^c-a)^c+a=1​

Answer»

ANSWER:GIVEN

X^a-b x^b-c x^c-a = 1

Wkt

X^m*X^n= X^m+n

X^a-b+b-c+c-a= 1

X^0= 1

18.

9. One of the exterior angles of a triangle is 70° and the interior oppositeangles are in the ratio 3:4. Find the angles of the triangle.​

Answer»

Let interior opposite ANGLES be 3x and 4X

And,

Sum of interior opposite angles = exterior angle.

3x + 4x = 70°

7x = 70

x = 70/7

x = 10

So, 3x = 3 × 10 = 30°

4x = 4 × 10 = 40°

Now, to find third angle

Let 3rd angle be 'x'

we know,

sum of all angles of a ∆ are 180°

30° + 40° + x = 180°

70° + x = 180°

x = 180 - 70

x = 110°

So, 3 angles will be 30°, 40° and 110°

19.

Using suitable identify of polynomials factirise x²= y²÷100

Answer»

ANSWER:

x^2=y^2/100

100=y^2/x^2

100={y/x}^2

y/x=√100

y/x=10

20.

Prime factorisation of 38416

Answer»

2 | 38416

2 | 19208

2 | 9604

2 | 4802

2 | 2401

7 | 343

7 | 49

7 | 7

. | 1

Hence, 38416 = 2×2×2×2×2×7×7×7

Hope it HELPS!!! :)

21.

Fin the missing number in the circle

Answer»

ANSWER:

ATTACH the PICTURE with the QUESTION

22.

A sales agent is paid Rs 4000 every month and a commission of 0.8% on the total sales.If he receives Rs 5129 at the end of the month, find the total sales.

Answer»

TOTAL PAY = 4000 + 0.8*total SALE

Total sale = (5129 - 4000)/0.8

= (1129/0.8) = 1411.25

23.

3(x² + 7)=2 standard form

Answer»

Answer:

3(X SQUARED +7)=2

3*x squared + 3*7=2

3x squared + 21=2

3x squared + 21-2=0

3x squared + 19=0

3x squared + 0X + 19=0

24.

Different items covered by newspaper

Answer»

NEWSPAPER can be USED to COVER ANYTHING

25.

How can you change your grades in math to improvve them?

Answer»

Answer:

  • Practice regularly
  • Clear your doubts time to time
  • Get expert TEACHING for BETTER acknowledge
  • Hardwork MATTERS BUDDY!
  • All the best✌️

26.

Constant zero solution of linear ordinary differential equation is called

Answer»

If the constant term is the ZERO function, then the differential EQUATION is said to be homogeneous, as it is a homogeneous polynomial in the unknown function and its derivatives. ... The solutions of a homogeneous LINEAR differential equation form a VECTOR SPACE.

27.

My son was 12 when I was 3 times his age. Now, I am 45. How old was my son 5 years ago?​

Answer»

Age of Son = 12 YEARS

Age of mother = 3 times of son's age

To find mother's age we'll multiply 3 with son's age i.e 12

So, MOTHERS age = 3 × 12 = 36 years

Difference between their ages = 36 - 12 = 24 years.

So, there will be 24 years of age difference between mother and son always.

Mother's age now(given) = 45

Son's age now = 45 - 24 = 21

Son's age 5 years ago = 21 - 5 = 16

So, son's age 5 years before was 16 years.

28.

30. An officer was appointed on maximum daily wages on contract money of Rs.4956. But on being absent for some days, he was paid only Rs. 3894. For how many days was he absent?A. 3 B. 4 C. 5 D. 6​

Answer»

Total MONEY lost due to absence = 4956-3894 = 1062

Since 1062 is not divisible by 4 or 5

so number of DAYS he was absent can either be 3 where he was charged 354 for each day he was absent

or 6 days where he was charged 177 for each day he was absent.

29.

Please give the answer as fast as possible

Answer»

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##ANSWER##↡↡↡↡↡↡↡↡↡↡↡↡↡↡↡↡↡↡

u can USE LOGARITHM dear......

30.

-3/5 *2/7 +1/5 +2/15 *3/5=?

Answer»

=  >  -  \frac{3}{5}  \times  \frac{2  }{7}  +  \frac{1}{5}  +  \frac{2}{15}  \times  \frac{3}{5}  \\  =  >  -  \frac{6}{35}  +  \frac{1}{5}  +  \frac{2 }{25}  \\  =  >  \frac{ - 30 + 35 + 14}{175}  \\  =  >  \frac{19}{175}   \\  =  > 9.2105

31.

What value of 94 degree in radin​

Answer»

RADIAN MEASURE = 94 × π/180

= 47 × π/90

= 47π/90 rad

Hope it HELPS!!! :)

32.

Factorisex^2(y^2-z^2)+y^2(z^2-x^2)+z^2 (x^2-y^2)

Answer»

Answer:

0

Step-by-step EXPLANATION:

=x²(y²-z²) + y²(z²-x²) + z²(x²-y²)

=x²y²-x²z² + y²z²-y²x² + z²x²-z²y²

=(x²y²-y²x²) + (y²z²-z²y²) + (z²x²-x²z²)

= 0+0+0

=0

33.

Draw an appropriate graph to represent the given information

Answer»

where is the INFORMATION y DEAR MATE?

34.

Express in the simplest form:1. 0.32 bar2. 1.8 bar3. 0.16 bar4. 0.254 bar5. 0.365 bat

Answer»

Step-by-step explanation:

0.32 BAR

10×=32.222222222222.........1

100×=32.222222.....2

from 1&2

100×=32.2..

-10×=3.2=90×=29×=29/90

35.

The probability of an event A occurring is 0.5 and B occurring is 0.3. IfA and B are mutually exclusive events, then find the probability of neither A nor B occurring

Answer»

Answer:0.2

Step-by-step EXPLANATION:

A and B are mutually EXCLUSIVE events... P(AΠB)=Φ=0

P(A U B)=P(A)+P(B)-P(AΠB)

=0.5+0.3

=0.8

P(A U B)'=1-P(A U B)

=1-0.8

=0.2

36.

Which graph represents y – 1 = 2(x – 2)?

Answer»

For PLOTTING the GRAPH y-1=2(x-2)

your can DIRECTLY check the values at y= 0 and x = 0 or you can shift the GRAPHS y= x-2 and y-1= x-2

37.

Using the suitable identity of polynomial factorise x²÷4-y²÷4

Answer»

ANSWER:

x^2/4 - y^2/4

x^2-y^2/4

(x-y)(x+y)/4

38.

Please help....................☺​

Answer»

Answer:

Step-by-step explanation:

the SQUARE root of 59.29 is 7.7

the square root of 5.29 is 2.3

√59.29 -  √5.29 is 7.7 - 2.3

√59.29 + √5.29 is 7.7 + 2.3  

then we divide the DIFFERENCE of 7.7 and 2.3 which is 5.4 and the SUM of 7.7 and 2.3 which is 10 and you will GET 0.54.

39.

write all whole numbers between 100 and 200 which do not change if digits are written in reverse order.​

Answer»

All WHOLE numbers between 100 and 200 which do not change if digits are WRITTEN in REVERSE order are:

101

111

121

131

141

151

161

171

181

191

Hope it HELPS!!! :)

40.

What is the 5000th number in the list of all natural numbers with the perfect squares deleted

Answer»

Answer:

Nth non-SQUARE number

Given n, find the nth number which is not a perfect square AMONG natural numbers (1, 2, 3, 4, 5, 6, … )

Examples:

INPUT : 3

Output : 5

First three non-square numbers are 2, 3

and 5

Input : 5

Output : 7

Input : 16

Output : 20

41.

Evaluate- 15÷√10+√20+√40-√5-√80​

Answer»

HEY MATE your ANSWER is here......... ☺

42.

What is ridian and how can we convert it into degree ​

Answer»

Answer:

The radian is a UNIT of measure for angles USED mainly in TRIGONOMETRY. It is used instead of degrees. Whereas a full CIRCLE is 360 degrees, a full circle is just over 6 radians. A full circle has 2π radians (Roughly 6.28) As seen in the figure above, a radian is DEFINED by an arc of a circle.

to convert

1 degree =

0.0175 radian

43.

15 years hence a man will be just 4 times as old as he was l5 years ago. His present age is

Answer»

Answer:

Step-by-step explanation:

LET the present age be as x

→ EQUATION :

→ (x + 15) = 4 × ( x -15  )

→ x + 15 = 4x - 60

→ x - 4x = -60 - 15

→ -3X = - 75

→ x = 75/3

= 25 yrs

→ SO, his present age is 25 yrs.

44.

Xylanase producing bacteria from hot springs in usa

Answer»

Answer:

xylanase is one of the enzymes with great prospects as hemicellulose hydrolyzing enzyme. Global annual market demand for this enzyme reach US $ 200 million. This enzyme catalyzes the xylan (hemicellulose) reactions BREAKING into xilooligosakarida and xylose. Xylanase can be applied to various industrial sectors such as bread, sugar xylose, biofuels, ESPECIALLY in bleaching paper (bleaching) pulp. Xylanase Isable to replace conventional chemical bleaching using chlorine that is not friendly for the environment. Currently xylanase production is EXTRACTED from the thermophilic bacteria for enzyme stability at high temperatures that are suitable for industrial applications. Thermophilic bacteria can be isolated from a hot spring, one of the which is a source of Sapan Sungai Aro Hot Spring, located in the district South Solok. The aim of this study was to select and identification of thermophilic bacteria can produce xylanase.This roomates is a descriptive study, which was Carried out in the Laboratory of Microbiology, Mathematic and Science Faculty of Padang STATE University, and Laboratory of Bacteriology, BasoVeterinary Research Center. The research procedure consisted of the preparation and sterilization of materials and tools, medium manufacturing, regeneration, selection and identification. Selection is performed by using a semiquantitative screening plate that contains xylan substrate. Identification is BASED on microscopic and biochemical characteristics until the genus level.

45.

X^2-xy+y^2=2 and x^4+x^2-y^2+y^4=6 find x^2+xy+y^2

Answer»

ANSWER:

hyfyfypicture so LIST SEEN seen of IFFY FUNKY

46.

4 x square - 4 x + a square minus b square is equal to zero

Answer»

ANSWER:

Will TELL you in 20 MINS

47.

12(x+4)=12x+48 which property is used in this equation

Answer»

In this EQUATION, DISTRIBUTIVE PROPERTY is used.

Hope it HELPS!!! :)

48.

Write the derivative of sinx with respect to cos x

Answer»

d(sinx)d(COSX)=d(sinx)dx⋅DXD(cosx)

We know the derivatives of sin and cos:

d(sinx)dx=cosx

and

d(cosx)dx=−sinx

Also by the chain RULE, we have:

dxd(cosx)=−1sinx

So we have:

d(sinx)d(cosx)=−cosxsinx=−cotx  

49.

You happen to go to agra in crowded bus write diary entry

Answer»

ANSWER:

HEY bro this question of English how can it be MATH

50.

Write two pythagorean triplet having one of the no as 5

Answer»

ANSWER:

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