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.

Write a some formula which is related to chapter name mensuration​

Answer»

ANSWER:

  • Area of the Area = 1/2 x base x height

  • If a , b , c are the SIDES of the traingle ,

then perimeter of the triangle = a + b+ c

  • Semi – perimeter= a+b+c/2
  • Area of the triangle = √s(s−a)(s−b)(s−c)
  • Area of the equilateral triangle = 3√4a2

  • The perimeter of rectangle = 2(l + b).
  • Area of rectangle = l × b; (l and b are the length and breadth of rectangle)
  • Diagonal of rectangle =√ l2+b2b2

  • Perimeter of square = 4 × S.
  • Area of square = S × S.
  • Diagonal of square = S√2; (S is the side of square)

  • Perimeter of parallelogram = 2 (sum of adjacent sides)
  • Area of parallelogram = base × height

  • Area of rhombus = base × height
  • Area of rhombus = 12× length of one diagonal × length of other diagonal
  • Perimeter of rhombus = 4 × side

  • Circumference of CIRCLE = 2πr = πd ,Where, π = 3.14 or π = 22/7
  • r is the radius of circle
  • d is the diameter of circle
  • Area of circle = πr2
  • Area of ring = Area of OUTER circle - Area of inner circle.
2.

the difference between areas of two circles is 462 sq. units and the sum of their circumference is 132 units.Find the radius of each circle.​

Answer»

ANSWER:

HEY MATE, here is your answer. HOPE it HELPS!!

3.

Find the value of sin (90 + 0) x (cos 270 - 0) ?​

Answer»

Answer:

0

Step-by-step explanation:

sin(90 + 0) = 1

COS(270 - 0) = -sin(0) = 0

Therefore, sin(90 + 0) × cos(270 - 0) = 1 × 0 = 0

HOPE THIS HELPS YOU........

4.

Anyone can pls just clarify this doubt​

Answer»
5.

Write area of a triangle using Heron's formula ?​

Answer»

ANSWER:

Step-by-step explanation:

Hero's formula

√s(s-a)(s-B)(s-C)

In which::

A,b and c are the sides of a TRIANGLE

And S STAND for= { A+B+C}/2

6.

A, B and C can complete a work in 5 days. If A and C can complete the same work in 7-days and A alone in 15 days, then in how many days can B and C finish the work?​

Answer»
7.

For a normal curve with μ= 75 and σ = 10, how much area will be found under the curve to the right of the value 75?​

Answer»

ANSWER:

bfis DUSN wnkskxj kdjdbsbjdi jeos bbjdksnbdkdk

Step-by-step EXPLANATION:

idodjsosndji

8.

. A rectangular field is 50 m long and 30 m wide. How many flowerbeds each in the shape of right-angled triangle with sides containing the right-angle measuring 15 m and 8 m, can be laid in this field?​

Answer»

Answer: NUMBER of flowerbed=30

Step-by-step explanation:

Area of field=number of FLOWERBEDS*area of one flowerbed

50(30)=area of field

1800m^{2}=area of field

area of one FLOWER bed=1/2*15*8

15*4=area of one flower bed

60m^{2}=area of one flower bed

Let number of flower bed be n

Since

Area of field=number of flowerbeds*area of one flowerbed

1800=n*60

n=1800/60

n=30

Hence Number of flowerbed=30

Hope it HELPS..

9.

One who answers this first will be marked as the brainliest ​

Answer»

ANSWER:

xy+4:-4

13-y²:-13

-y+5y²:-5

4p²q-3pq²+5:-4,3,5

terms:

xy

-y²

-y,5y²

4p²q,-3pq²

hope mate it helps you and PLS MARK me as the brainliest and pls FOLLOW me pls pls pls

10.

Write about in Indus valley civilization​

Answer»

Answer:

The Indus Valley Civilisation was a Bronze Age civilisation in the northwestern regions of South Asia, lasting from 3300 BCE to 1300 BCE, and in its mature form from 2600 BCE to 1900 BCE. Wikipedia

Dates: c. 3300 – c. 1300 BCE

Period: Bronze Age South Asia

Geographical range: South Asia

Followed by: Painted Grey Ware culture; Cemetery H culture

Indus Valley Civilization

of patterns into the bottom face of a seal USED for stamping. The Indus CITIES are noted for their urban planning, baked brick houses, elaborate DRAINAGE systems, water supply systems, and clusters of large, non-residential buildings.

11.

Find the mode of 5,6,9,6,12,3,6,11,6,7​

Answer»

ANSWER:

PLEASE MARK me as BRAINLEST

mode=6

12.

EXERCISE - 1.1Use Euclid's division algorithm to find the HCF of(i) 900 and 270 (ii) 196 and 38220 (iii) 1651 and 2032nitiva odd integer is of the fo​

Answer»

Answer:

iska

Step-by-step EXPLANATION:

iska solution KAFI lengthy H

so .......

13.

a person has salary scale of 10,000-100-20000. Find his total salary after 6 years and 10 months 738000.​

Answer»

Step-by-step explanation:

Given A person has Salary scale of 10000-100-20000. FIND his TOTAL salary after 6 years  and 10 months

  • Here a =10,000, d = 100, N = 6 yrs 10 months
  • We know that Sn = n/2 (2a + (n – 1 )d)
  •                             = 6/2 (2(10000) + (6 – 1)100)
  •                             = 3 (20000 + 500)
  •                            = 61,500
  •   So S = 61,500 x 12 = 7,38,000
  • Now we need to find for 10 months.
  • So  an = a + (n – 1)d
  •            = 10000 + (6 – 1)d
  •            = 10,000 + 500
  •            = 10,500
  • So salary will be 10,500 x 10 = 1,05,000
  • Therefore total salary will be 7,38,000 + 1,05,000
  •                                              = Rs 8,42,000

Reference link will be

brainly.in/question/4789608

14.

What is the last digit of 5 power 100​

Answer»

Answer:

it will ALWAYS have 5 at its unit digit untill the power is NEGATIVE or ZERO....

Step-by-step explanation:

hope it HELPS...

15.

If x-1/x=3, find the value of x2+1/x​

Answer»

Step-by-step EXPLANATION:

x-1/x=3 that MEANS x=-1/2 then x2+1÷x=1/4+1÷-1/2=-5/2

16.

Factorisea⁵+a³-a²-1

Answer»

ANSWER:

a⁵+a³-a²-1

a^3(a^2+1)-1(a^2+1)

(a^3-1)(a^2+1)

17.

X^2+4x+3/x^2+5x+4 - x^2-9/x^2+7x+12pls i need a step by step solution urgently

Answer»

I don't KNOW the ANSWER

18.

construct a triangle d e f such that d is equal to 5 cm is equal to 3 cm and angle e d f is equal to 90 degree​

Answer»

ANSWER:

Step-by-step EXPLANATION:

19.

Babita wants to cover the floor of a room 4 m wide andtile is 0.5 m long, then find the number of tiles requirem wide and 6 m long with squaof tiles required to cover the floorSolution:ith square tiles. I sidshe floor of the roomNameWORKSHEET A10. MensurationA park is rerk is rectangular in shar150 m is designed, finWhat is the cost of tiling a rectangular plot of land 400 mlper hundred square metre?m long and 200 m wide at the raSolution:Solution:at the ratesAnswer the following(a) Which paper is u6.The area of a square card board is 1 m´. How many squares of area 100 cm2this card board.100 cm? can be seemed frysSolution:(b)If area and 1​

Answer»

Answer:

SORRY

Step-by-step EXPLANATION:

sorry I can't SOLVE this PROBLEM because I forgot

20.

Maths solve the sum chapter10 circle​

Answer»

Answer:

105°

Step-by-step EXPLANATION:

ANGEL Q+angel R=180°

let angel Q and S be 7X and 5x

now ,7x+5x=180°

12x=180°

x=180/12

x=15°

angle Q=15^7=105°

21.

. In ∆PQR, P = R and QM bisects POR. Prove that OM is perpendicular to pr​

Answer»

Step-by-step EXPLANATION:

CONGRUENCY CHAPTER he KYA

22.

Can someone please help solve this problem? ​

Answer»

ANSWER:

SORRY MATE I don't KNOW the answer

23.

Show that points (2, -1, -1), (4, -3,0) and(0,1,-2) are collinear.​

Answer»

Answer:

u can SOLVE this using DETERMINANT METHOD...

if ur determinant comes out to be 0 then u can say that these points are COLLINEAR...

hope it works

24.

If the derivative of the objective function is a polynomial of order ‘N’ and has roots which are repeated thrice, then how many stationarypoints exist for the objective function?​

Answer»

ANSWER:

N-2

Step-by-step EXPLANATION:

25.

5. A boy goes to school at a speed of 3 km/hand returns to the village at a speed of2 km/h. If he takes 5 h in all, what is thedistance between the village and the school?(a) 16 km(b) 8 km(C) 6 km(d) 18 km​

Answer»

Answer:

average velocity for the JOURNEY =3+5/2=4km/h

now s = DISTANCE /TIME taken

distance=4*5=20km is the ANS. i think

26.

the football team consists of 11 players. their average age is 22 years. during the match,one of the player was eleminated. at the same time,the average age of the team became 21 years. how old is a retired player.​

Answer»

ANSWER:

the retired PLAYER is 1 year old.

27.

Sin A COSAFind its usual speed(1+cot A tan A) (sin A Cos A)/sec Prove thatse a cosec AOR​

Answer»

ANSWER:

vjasvns

by ABANDONED zjx

gsjzns

hJ sbsjsb

Step-by-step EXPLANATION:

hshwj

jsjwwb

bdbsns.

shsbab

28.

1715.271 मैं 7 का स्थानीय मानों का अंतर क्या होगा ​

Answer»

ANSWER:

इस काउंटर 5000 के बीच के आस पास होगा

29.

Anyone in class 8 cbseplz send extra questions of ch 14 of maths factorisation​

Answer»

ANSWER:

extra ques......RD SHARMA KR LO ....

30.

Please solve this ..............​

Answer»

ANSWER:

where's FIGURE... SHOW me the figure I'll TRY to ANWER

31.

How to change meter in km​

Answer»

Answer:

1m = 1/1000 km

Step-by-step EXPLANATION:

MARK as BRAINLIEST .

32.

8. Three years ago, Amit's age was four times theage of Smita at that time. Five years hence,Amit's age will be twice the age of Smita then.Find their present ages.​

Answer»

Step-by-step explanation:

3 YEARS ago

let SMITA AGE be x

Amit age is 4x

after 5 years

Smita age x+5

Amit age4x+5

Amit age is twice of Smita

4x+5 = (x+5)2

4x+5 = 2x+10

4x-2x = 10-5

2x = 5

x = 2.5 years

age of Smita = 2 years 6 months

age of Amit = 4*2.5 = 10 years

33.

Pls answer to the question... ​

Answer»

Numbers- 25,85,135
Remainder left- 5
Therefore, the actual numbers are-
(25-5),(85-5),(135-5)
= 20,80,130
Now FIND the HCF(20,80,130)
HCF(20,80,130) = 10

34.

Calculate the number of days between pongal and may day​

Answer»

ANSWER:

Pongal is on 15 January

May day is on 1ST May

Number of DAYS between them are 107 days.

Hope this helps.

Please follow me and mark this as the BRAINLIEST answer.

35.

Lim ( x*1/6 - 2) / (x*1/2 - 8) X -> 64 Please solve ​

Answer»

Answer:

15.33333333 MAY be......

36.

Find the volume of sphere whose radius is(1) 7 cm (2) 0.63cm​

Answer»

(1)1436.76 and(2) 1.05

Step-by-step EXPLANATION:

(1) V= 4/3 ×22/7×7×7×7

= 1436.76

(2) v = 4/3×22/7×.63×.63×.63

= 1.05

37.

Solve this sum.... maths​

Answer»

here is your answer mate:

since AB = AC

it is an isosceles triangle with ANGLE B = angle C

thus, angle A = 2x angle B = angle C = x + 10

according to the angle sum property of the triangle,

angle A + angle B + angle C = 180

angle A + 2 angle B = 180

2x + 2(x + 10) = 180

2x + 2x + 20 = 180

2(x + x + 10) = 180

x + x + 10 = 90

2x + 10 = 90

2x = 80

x = 40

therefore, angle A = 2x = 80 degrees

angle B = angle C = x + 10 = 50 degrees

hope this answer helps you buddy

please mark as BRAINLIEST:-)

38.

10x20x30x100-50+30+90-3-6x1x0=?​

Answer»

ANSWER:

so EASY answer is ZERO

PLEASE FOLLOW me

39.

₹2-50 प्रति पैंसिल की दर से पेंसिलें बेचने पर विनोद को ₹110का लाभ होता है. इतनी ही पैसिलें₹1.75 प्रति पैंसिल बेचने सेउसे ₹55 की हानि होती है. विनोद के पास कितनी पैंसिलें हैं?​

Answer»

ASK the question at ENGLISH ....then the ANS will possible

OK dear FRIEND

40.

Provethat :plz answer as fast as possible​

Answer»

ANSWER in ATTACHMENT MATE

41.

_541power4 mcube nsquare by 9l square msquare nsquare​

Answer»

WRITE your QUESTION CLEARLY

42.

Factorise a² + 6a -91 ​

Answer»

Step-by-step EXPLANATION:

a2+6a-91

=a2+6a-91

This is the SIMPLEST form of this AWNSER

Pls MARK as BRAINLISTER pls

43.

the diagonal of a rectangle is 1 cm more than its length and breadth of the rectangle is 7 cm less than its length.Find the dimensions of rectangle.​

Answer»

Answer:

LENGTH of RECTANGLE = X; breadth = x-7 ; diagonal=x+1.

Step-by-step explanation:

All the ANGLE of a rectangle are 90°.

So by using PYTHAGORUS theorem,

44.

In a triangle ABC AB:BC=3:4 BC :AC =5:4A) If AB=30 degre .what is the length of BCB ) what is AB:BC:AC​

Answer»

Answer:

(A) The LENGTH of BC  40°

(B) AB : BC : CA = 15 : 20 : 16

Step-by-step explanation:

Given as :

For any TRIANGLE ABC

The RATIO are as

AB : BC = 3 : 4

BC : AC = 5 : 4

Or, \dfrac{AB}{BC}  = \dfrac{3}{4}  × \dfrac{5}{5}

So, \dfrac{AB}{BC}  = \dfrac{15}{20}

And \dfrac{BC}{AC} = \dfrac{5}{4}  × \dfrac{4}{4}

So , \dfrac{BC}{AC} = \dfrac{20}{16}

Therefor the ratio can be written as

AB : BC : CA = 15 : 20 : 16

Let The length of AB = 15 x

The length of BC = 20 x

The length of CA = 16 x

A/Q

AB  = 30°

Or, 15 x = 30°

∴    x = \dfrac{30}{15}

  i.e  x = 2°

Put the value of x in BC value

i.e The length of BC = 20 × 2° = 40°

Hence, (A) The length of BC  40°

And      (B) AB : BC : CA = 15 : 20 : 16   Answer

45.

एक रेलगाड़ी एक समान चाल से 360 km की दूरी तय करती है। यदि यह चाल 5Kmh अधिक होती. तो बह उसी यात्रा मं 1 घंटा कम समय लेती । रेलगाड़ी की चाल ज्ञात कीजिए।​

Answer»

Answer:

1 घंटे में रेलगाड़ी 360 किलोमीटर ट्रैवल करती है तो रेलगाड़ी की चाल होगी वन 36 * टू ऑल 360 को 12 से गुणा कर दो जो आंसर निकले क्या उसका आंसर है

46.

What are the multiple of 2?

Answer»

all the EVEN NUMBERS...............

47.

Sandra bought a mobile phone for ₹ 6000. she spent ₹ 250 on it's repair. she sold it for ₹ 7000. find her profit per cent​

Answer»
48.

Show that n^2 - 1 is divisible by 8 if n is a odd positive integer ​

Answer»
49.

3 Iron small cubes with 3 cm and 4 cm and 5 cm are placed into the big cube req​

Answer»

ANSWER :

6 cm

Step-by-Step Explanation :

a = 3cm , B = 4cm , c = 5cm and l = SIDE of req. big CUBE

Volume of small 3 CUBES = Volume of big cube

a^3+b^3+3^3 = l^3

3^3+4^3+5^3 = l^3

27+64+125 = l^3

216 = l^3

cube root of 216 is 6.

So, side of req. cube is 6 cm

50.

In what case would the  Poisson distribution be a good approximation of the binomial?​

Answer»

Answer:

The approximation works very WELL for n values as low as n = 100, and p values as high as 0.02. The FIGURE below PLOTS these two distributions together and shows how closely the Binomial distribution is approximated by the Poisson distribution in such limiting CASES.