Explore topic-wise InterviewSolutions in Current Affairs.

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1.

Arun earns3,90,000 per year. Find his earnings for 25 weeks.

Answer»

for 1 year = 365 daysfor 25 weeks = 175 days salary for 1day = 390000/ 365 = 1068.4for 25 weeks = 1068.4× 175 = 186970therefore salary for 25 weeks is Rs 186970

1 year=52 weeks1week=750025week=187500

390000÷52=7500×25=187500

186970 is the correct answer.

2.

average earnings in a day(d) The temperature of a city in five days was 385°C, 41.and 37.2°C. What was the average daily temperature

Answer»

avg temperature is. = (38.5+41.2+46.2+31.4+37.2)/5 = 38.9

3.

2(c) 92 -3(50)

Answer»

Please hit the like button if this helped you

tq

4.

3.Arun earns 3,90,000 per year. Find his earnings for 25 weeks.

Answer»

Yearly ₹390000weekly 390000÷52. as 1 year has 52 weeksweekly 750025 weeks 7500×25187500 this is the correct answer

Plz accepted as best

the correct answer is 187500 of the following

Arun earning in 25 weeks=187500

187500 is the correct answer of the given question

187500 is the best answer

yearly =390000; 39000÷52=7500 weeks; 7500× 25 weeks=187500

yearly 390000weekly 390000÷52 1/52weekly 750025 weeks 7500×25So, correct answer is 187500

correct answer is 187500

Arun earns ₹ 3,90,000 per year.there are 52 weeks in 1 yearso he in 1 week = 3,90,000/52 = ₹ 7,500therefore his earning for 25 weeks = 7,500 × 25= ₹ 1,87,500

5.

Find the equations of circles wit

Answer»

question is not visible. its unclear

Photo clear send karo

I) is the correct answer

6.

Write the formula sostermatGop and explain the term wit.

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Given a geometric sequence with the first term a1 and the common ratio r

The nth (or general) term is given by:an = a1⋅r^(n−1).

7.

What are the possible values of remainder r, when a positive integer p is dividedby 3?2.

Answer»

Let p be the divisor b the dividend and q be the some integer Using Euclid division algorithm we obtain p = 3q+r where r ≤ 0 , 1 , 2Hence possible value for r are - 0 , 1 ,2

8.

Show that any positive integer is of form 3 J& Ifα and β are the zeros of the polynomial p (x) ax2 + bx + c, then find the value oftα

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9.

13.Show that p2 - 1 is divisible by 8, where p is an odd positive integer

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Any odd positive integer is in the form of 4p + 1 or 4p+ 3 for some integer p.Let n = 4p+ 1,(n^2– 1) = (4p + 1)^2– 1 = 16p2+ 8p + 1 = 16p^2+ 8p = 8p (2p + 1)⇒ (n^2– 1) is divisible by 8.(n^2– 1) = (4p + 3)^2– 1 = 16p^2+ 24p + 9 – 1 = 16p^2+ 24p + 8 = 8(2p^2+ 3p + 1)⇒ n^2– 1 is divisible by 8.Therefore, n^2– 1 is divisible by 8 if n is an odd positive integer.

10.

9 Ir0-2,show that (cot θ +Īsios6)-2.-sino-...

Answer»
11.

createst comकात्मकन को विभाजित करता।{4}से चित करते हैं।मक पूर्णाक 8 और 6 का मन वह बड़ा-से-बड़ा धनात्मक पूणांक है जो ।न करता है। 4 और 6 के मस को मस- ५०, b) या ICF (a, th) यामसः (a,1)= मस- (०, a) = ४, मसः (4,0)= 4, मसः (4,6) = म सकों के महत्तम समापवर्तक के वास्तविक परिकलन के लिए एक प्रभावी तरीका हैनिडयन एलोरिद्म (Euclidean algorithin) के नाम से जाना जाता है।व एलााग्रिम में हम यूक्लिड के भाग लेमा का बार-बार प्रयोग करते हैं।का प्रक्रिया का वर्णन हम एक उदाहरण द्वारा नीचे कर रहे है।।कारण ; 15365 और 3045 का महत्तम समापवर्तक ज्ञात करें।द एक 15365 से क्रिया प्रारंभ करे और शेष 0 आ जाने पर क्रिया का अंत की।मालेमा = by+7,05/<b के बार-बार प्रयोग से,15365 = 945x5+14045 = 140x21+105 (भाजक 3045 और शेष 140 लेते हुए)10 =1031+ 35 (भाजक 140 और शेष 105 लेते हुए)105 = 33x3+0 (भाजक 105 और शेष 35 लेते हुए)

Answer»

kuch samajh nhi aa rha bewakoof gadhe

this is a funny question

what is your question ?

12.

Ir a and b are rational numbers, find the value of a and b2 V2a + b/2

Answer»

By rationalization2-√2)(2-√2)/(4-2) = (2-√2)^2/2 = (4+2-4√2)/2 = (6-4√2)/2 = 3-2√2a= 3 b= -2

13.

If A= {0,2,4], find Ano and AA. Comment.

Answer»

A|~|x=(1, 3, 5, 6, 7, 8, 9, ), A|~|A=(1, 3, 5,6)

A cup fai =( )A cup A=(0,2,4)

null set 0,2,4 is the correct answer

1) null set2) 0,2,4

14.

PagoDats। तथा ताकेबाचीदुरी शाह कानि

Answer»

dist=√(x2-x1)^2+(y2-y1)^2 =√{(1)-(-5)^2+(3-6)^2 =√(1+5)^2+(-3)^2 =√36+9 =√45 =√3*3*5 =3√5 unit

15.

elative humidity (in %) of a certain city for a month of 30 days was as follows:086 092 90.3 865 95.3 92,9 96.3 94.2 95.1202.3 97.1 93.5 2.7 597.2 93.3 952 973 C92 92.1 SA9 02 95.7 8.3 97.3 96.1 92.1 8>Construct a grouped frequency distribution table with classes 84-86, 86-88, ete.Which month or season do you think this data is about?1 (iii) What is the range of this data?

Answer»
16.

.1s. In a seriesnite series.Tn =a2n-2 (x0), then write the infi

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17.

alam. earn his earnings?'his earningsiv) How did Kam

Answer»

How didAbdulKalam earn hisfirst wages?

During the Second World War, the newspaperswerebundled and thrown out ofamoving train. Abdul Kalam earned hisfirst wages by helpinghiscousin, who distributed newspapers in Rameswaram, to catch these bundles.

18.

16. If the sum to n terms of a series is n2 +2n, show that theseries is an A.P.

Answer»

Sn= n^2 +2nS1=1^2 + 2×1= 1+2=3S2= 2^2 + 2×2 = 4+4=8a1=3 ,a2= 8-3=5S3= 3^2 + 2x3= 9+ 6=15a3=S3-S2=15-8=7AP = 3,5,7......with common difference= 2

19.

Write all possible remainders if a positive integer p is divided by 32

Answer»

Let the numbers be 3a , 3a+1 , 3a+2 , 3a+3, 3a+4 .....etc

so, if 3a is divisible , so, remainder of 3a+1 is 1

similarly for 3a+2 is 2 and for 3a+3 = 3(a+1) is 0

so, possible remainder are 0,1,2

20.

A. Ir222From the figure of o (O. r), match the following. The correct option isMatch:1.ACU ABC length2. OA length3. AC lengtha. 2rb. r2.-a

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21.

find the Value usin 3045G

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22.

ur had So. te spent14 on toys and 6 on books. How much money was eft wit78himMaths Matrix-V

Answer»
23.

29. in Fig 10, a right circular cone of diameter r cm and height12 cm tests on the base of a right cinculae cvlinder of radius r cmTheir bases are in the sanme plane and the sylinder is filled withwater Lig to a height of 12 cm the cone as then闥moved findthe height to which water level wili fallDraw a histogram for the following data

Answer»
24.

a right circular cone of diameter r cm and heightcm rests on the base of a right circular cylinder of radius r cmheir bases are in the same plane and the cylinder is filled withwater upto a height of 12 cm. If the cone is then removed, find12the height to which water level will fall

Answer»

y at the last it directly become 11 cm

25.

Find the altitude of a right circular cone ofmaximum curved surface which can beinscribed in a sphere of radius r.6]

Answer»
26.

Find the curved surface area of a right circular cone of height 15cm and base diameter is 16 cmFind the maximum volume of a cone that can be out of a solid hemisphere of radius r.

Answer»

Let the radius of the hemisphere = r units

Radius of the cone = radius of the hemisphere

height of the cone = radius of the hemisphere

h = r ----( 1 )

Therefore ,

Required

maximum volume of the cone = ( 1/3 ) πr²h

V = ( 1/3 ) × π × r² × r

= ( 1/3 ) × πr³ cubic units

27.

11. How long will it take for(a) 4%; (b) 10%;500 to grow to * 2,000 at the following interest rates :(c) 18%

Answer»

1) It will take 100 years for 1st one

it will take 100 year at 4% rate

take 100 year at the rate 4%

it take 100 years at the rate of 4℅

100 year at the rate 4%

it will take 100 year at the rate of 4%

I think I will take 100year at 4%rate

100 take year at the rat 4% is the right answer

100 tak year 4%is the correct a5

Option a is correctUr ans is 4%

option a 4% is the right answer

It will take 100 years for 1st one

28.

find the compound interest on 26000 for I year if the rates of interest for the first and second years are5% and 10%, per annum respectively.

Answer»

it will be 6000*[1+5/100]×[1+10/100]6000*105/100*110/1006930

29.

17. Two consecutive natural numbers aresuch that one-fourth of the smaller exceedsone-fifth of the greater by 1. Find the numbers.

Answer»
30.

ve thalsin cosog are the tangents drawn from D, to the circle with centre O, at A and B respectively1s.110 =35°, find AOB

Answer»

∠ADO=35°OA⊥DAOB⊥DBInΔAODandΔBOD OD=ODOA=OB[radiusofsamecircle]∠OAD=∠OBD=90°ΔAOD≅ΔBOD[RHS]∠AOD=∠BODInrt.ΔAOD∠AOD=90°−∠ADO=90°−35°=>∠AOD=55°∠AOB=∠AOD+∠BOD=>AOB=2∠AOD=>∠AOB=2×550=110°

31.

4. Find the least number which is divided by 35, 45 and 55 leaves the remainders 18, 28 and38 respectively.

Answer»
32.

\begin{array} { l } { \text { One-half of a number is equal to } } \\ { \text { one third of its succeeding number } } \\ { \text { find the first number. } } \end{array}

Answer»
33.

7. One-fourth of a number exceeds one-fifth of thesucceeding number by 3. Find the number

Answer»

send me again

34.

One fourth of a number exceeds one fifth of its succeeding number by 3. Then thenumber is

Answer»

We have to convert the given word problem into

algebraic equation.

Let the number = x

One fourth of the number = ( 1/4 ) × x = x / 4

Succeeding number of x = ( x + 1 )

One fifth of the above number = ( 1/5 ) × ( x + 1 )= ( x + 1 ) / 5

According to the problem ,

One fourhth of a number exceeds one fifth of its

succeeding number by 3.

x / 4 - ( x + 1 ) /5 = 3

LCM ( 4 , 5 ) = 4 × 5 = 20

[ 5x - 4 ( x + 1 ) ] / 20 = 3

5x - 4x - 4 = 3 × 20

x - 4 = 60

x = 60 + 4

x = 64

Therefore ,

Required number = x = 64

35.

what is ordinal numbers

Answer»

Ans :- a number denoting relative position in a sequence, such as first, second, thirdSometimes shortened to:ordinal. logicmathsa measure of not only the size of a set but also the order of its elements.

36.

Which agency was successful in meeting thecredit needs of the poor at reasonable rates inBangladesh?

Answer»

Grameen Bank founded by Professor Muhammad Yunus

37.

2. 2x^2 - 3x-2 = 0x/2 + x /3 = 15

Answer»

3x+2x=15x65x=90x=90/5x=18

38.

If x-p+ and y p-, then the2,,2value of x"-2x y ty" is

Answer»

x^4−2x^2y^2+y^4

=(x^2−y^2)^2

=[(x+y)(x−y)]^2

=[(p+1/p+p−1/p)(p+1/p−p−1/p)]^2=[(2p)(2/p)]^2

=4p^2/4p^2

=16

39.

what is father of math

Answer»

Greekmathematician Archimedesis widely considered by many to be the "father of mathematics." He is regarded as one of the leading scientists in classical antiquity and is credited with designing numerous innovative machines, including the screw pump and siege engines.

40.

6.When did Bangladesh come into being?19 y

Answer»

Formerly East Pakistan, Bangladesh came into being only in 1971, when the two parts of Pakistan split after a bitter war which drew in neighbouring India. Bangladesh spent 15 years under military rule and, although democracy was restored in 1990, the political scene remains volatile

41.

7.Write short notes on relations between(a)India and Bangladesh

Answer»

The two countries share many cultural ties. In particular, Bangladesh and the east Indian state of West Bengal are Bengali-speaking. Bangladesh has a high commission in New Delhi with consulates in Mumbai and Kolkata. India has a high commission in Dhaka with a consulate in Chittagong.

42.

2tyDisident inotf cent helmot

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43.

natomDoan

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44.

04/04/2012HE 2018 Ex-2.2 MathP9328Ty Baichangis father is 26 years youngestBaicheng's grand father and 29 yearsolthan Baichang. The Sun of the ages of allthree is 125 years. What is the age of eceone of them?

Answer»

Let age of Baichang = x yearsThen age of Baichang father= x + 29Age of Baichang grandfather= x + 29 + 26= x + 55

As per given conditionx + (x + 29) + (x + 55) = 1353x + 84 = 1353x = 51x = 51/3 = 17

Therefore,Age of Baichang = x = 17 yearsAge of Baichang father = x + 29 = 17 + 29 = 46 yearsAge of Baichang grandfather = x + 55 = 17 + 55 = 72 years

45.

Which of the following is correctly matched?(a) Radial symmetry Coelenterates(b) Coelomates9.(c) Metamerism(d) TriploblasticAschelminthesMolluscsSponges

Answer»

Platyhelminthes, are an obsolete phylum of pseudocoelomate.

seasponges, have one germ layer.

Metameric segmentation is absent in platyhelminthes, Echinodermata, Mollusca

Allcoelenterates areaquatic, mostly marine. The bodyform isradially symmetrical, diploblastic and does not havea coelom.

Hence, option (a) is correct.

46.

Two posts are K metres apart. If fromthe middle point of the line joining theirfeet, an observer finds that the anglesof elevations of their tops to be 60 and30° respectively, then the ratio of theirheights of the posts is:.

Answer»
47.

There are 8 equally spaced lamp-posts on a straight road. If the distance between the firstpost and the last post is 73 m 50 cm, what is the distance between any two posts placed oneafter the other?

Answer»

7)73m50cm(70m50cm 7o ×3 × 100=300 +50cm

350-- 35 ××0 0 ×

the difference between two land posts is =10m 50cm

48.

the number ofMathematics for Class 719 days in a full year. If her attendance is 75%. find then13, Sonal went to school for 2 19 days in a full year. Thedays on which the school was openmission on the sale of a property amounts to49680. What is the total valu42tal qumber of voters in 1colled

Answer»
49.

7. A man is thrice as old as his son. Six years ago the man was four times as old as hisson. Their present age difference is:

Answer»
50.

गत:Vv5 cos? 60°+ A sec>30° — tan” 45°gint 30°% cos” BUF.~ Y and XY ला 1

Answer»

cos60=1/2sec30=2/√3Tan45=1sin30=1/2 cos30=√3/2Hence5*1/4+4*4/3-1/1/4+3/4=5/4+16/3-1/1=15+64/12-1=79/11