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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 die is thrown once. Find the probability of getting(i) an even prime number. |
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Answer» Total possible outcomes=6no. of even prime number=1(i.e2)probability=1/6 |
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| 2. |
A letter is known to have come either from LONDON orCLIFTON. On the envelop just two consecutive letters ONare visible. What is the probability that the letter has come from) LONDON (ii) CLIFTON6 |
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Answer» thanks |
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| 3. |
24, A shopkeeper offers 10% off-season discount to the customers and still makes a profitof 26%. What is the cost price for the shopkeeper on a pair of shoes marked at Rs 1120? |
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| 4. |
Hint: First find the C.P. of the cycle.]A shopkeeper offor the shopkeeper of a pair of shoes marked at 1,120?ters 10% off-season discount and still makes a profit of 26%. What is the cost pricds so that after allow |
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| 5. |
Seven people seat themselvesindiscriminately at round table. Theprobability that two distinguished personswill be next to each other isa) 1/3b) 1/2c) 1/4d) 2/3 |
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Answer» total possibility=(7-1)!=6!now two are together so possibility=(6-1)!×2=5!×2so probability=(5!×2)/6!=(5!×2)/(6×5!) =2/6=1/3 |
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| 6. |
Also find the sum due at the end of third year.Ramesh invests 12800 for three years at the rate of 10%12800 for three years at the rate of 10% per annum compound interest.Find : |
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| 7. |
On a certain sum of money, invested at the rate of 10% per annum compoundedannually, the difference between the interest of the third year and the interestofirst year is 420. Find the sum. |
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| 8. |
A motorcycle is bought at Rs 160000. Its value depreciates at the rate of 10%per annum. Find its value after () 1 year, (1l) 2 years. |
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| 9. |
where goa? |
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Answer» Goa is a state on the southwestern coast of India within the region known as the Konkan, separated from the Deccan highlands of the state of Karnataka by the Western Ghats. It is bounded by Maharashtra to the north and Karnataka to the east and south, with the Arabian Sea forming its western coast. |
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| 10. |
सके in10. Prove that 1550— |
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Answer» Like if you find it useful |
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| 11. |
92. श्याम के 1200 क्रय मूल्य के एक जोड़ी जूतेको किस विक्रय मूल्य पर बेचे, ताकि 16%की छूट देने के उपरान्त भी उसे 12% कालाभ प्राप्त हो सके?(a) र 1344 (b) * 1434(c) 1550. (d) के 1600 |
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Answer» D) 1600 rs is the right answer |
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| 12. |
a) The priceam of paper (500 sheets of paper) costs Rs 175. How much does a sheettatisthepriceofa strip of a dozen tablets?624 of the 125 vehicles wwo |
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Answer» To find this divide the price by number of sheetshence175/500=0.35 rupees per sheet |
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| 13. |
A round table cover has six equal designs as shownin Fig. 12.14. If the radius of the cover is 28 cm, findthe cost of making the designs at the rate of0.35 per cm2. (Use 31.7) |
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| 14. |
A round tablein Fig. 12.14. If the radius of the cover is 28 cm, findthe cost of making the designs at the rate of0.35 per cm2. (Use 3-1.7).cover has six equal designs as shown |
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| 15. |
A round table cover has six equal designs as shownin Fig. 12.14. If the radius of the cover is 28 cm, findthe cost of making the designs at the rate of0.35 per cm2. (Use 3 -1.7)13. |
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| 16. |
A 1IS16252. 5The cost price ofe Cost price of a macbine23 So,0 00 E the rate depre10 per year find the depreciationo price of theyearsma thineq |
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Answer» Cost price of Machine = 250000 Depreciation in price = 10% per year Then price of Machine after two years= 250000(1 - 10/100)^2= 250000(9/10)^2= 250000(81/100)= 2500*81= Rs 202500 |
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| 17. |
Complete the following patterns.a) 25, 20, 15, 10, ,( |
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Answer» difference = 20-25 = -5 So, 10-5 = 5 5-5 = 0 0-5 = -5 25,20,15,10,5,0,-5 is the required pattern Like my answer if you find it useful! Thanks |
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| 18. |
2) Make dotted patterns using square numbers 5 x5 25 and 6 x 636 |
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| 19. |
e price or uJ0. tdt1s the price of a strip of a dozen tablets?The priceofpaper (500 sheets of paper) costs Rs 175. How much does a sheet cost?A ream of pa |
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Answer» Each sheet will cost 175/500=0.37 rupees |
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| 20. |
study the patterns in each of the following and find the rule.using the rule , write the next numbers.7, 11,13,16, |
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Answer» 7, 11, 13, 16, 20, 22, 25, 29, |
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| 21. |
e14.Ifthepriceofabicycleincreases from Rs 1250 toentage increase in the price?S,Rs 1550, what is the perc |
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Answer» % increase = [(1550-1250)/1550]*100 = (300/1550)*100 = (0.193)*100% = 19.3 % |
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| 22. |
Atoashop beeper offers 15the custosher andprofit of 19., whatshop beeperseasonstillisdiscountmakesthe CP. |
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Answer» 10% of M.P. =10×1120/100=112S.P. = 1120- 112= 1008C.P. =(100/100+Gain %)×S.P.C.P. =(100/100+26)×1008C.P.=100/126×1008 C.P.=800 |
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| 23. |
\begin{array} { l } { \text { If a retail shop earns a profit of } 12 \% \text { when an LED TV } } \\ { \text { is sold at } 228,000 , \text { what price had the shop paid for } } \\ { \text { the TV? } } \end{array} |
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Answer» Let the cost price of the TV be RS x.Therefore, x+(12x/100)=28,000. =>112x/100=28000 =>x=25,000 ans. |
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| 24. |
|विद्यासागर अंकगणित6541. 43+13x2} का 35 का मान होगा(1) 22 (2) 18।(3) ।(4) । |
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| 25. |
IWrite the possible outcomes of rolling a dice. Writethe probability of getting the following numbers1) A number greater than 5.2) A even number3) A odd number 34) A number less than 5. |
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Answer» 1= 1/62= 3/6 or 1/23= 3/64= 4/6 |
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| 26. |
| यदि एक कक्षा के गणित विषय में दस छात्रों के प्राप्तांक 52,75, 40, 70, 43, 40, 65, 35, 48, 52 हा, तो सलान्तर मध्य ज्ञात |
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Answer» 52+75+40+70+43+40+65+35+48+52=520520÷2=260 |
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| 27. |
(43+65) |
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Answer» 43+65=108 43+65=108 |
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| 28. |
to their product find the value of kwhere atheIHOTSThen, bcubic pμ.if α and β are the zena and B are the zerces of the quacdratic polynomial Kx) -3a-Sx -2, findvalue oflynomíalfW = 4x2-4x + 1, find the |
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| 29. |
height.e. Find the value of "x", "y" and "z".250R40 |
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Answer» (40+x+25=180)x=115,z=40,(180-40=x)=120 |
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| 30. |
e price of an article is increased by 25% and cost to250. Find the |
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| 31. |
ofthedigi3,ueelueuits digits. If the differenceIn what ratio does the x-axis divide the line segment joining the points (-4-6) and ( 1co-ordinates of the point of division.? Find the16.ORnoth of the altitude of |
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Answer» Let x-axis divides the line segment joining (–4, –6) and (–1, 7) at the point P in theratio 1 : k. Now, coordinates of point of division P are x coordinate = (-1 - 4k) / (k + 1) y coordinate = (7 - 6k) / (k + 1) Since P lies on x-axis, thereforey coordinate = 0 (7 - 6k) / (k + 1) = 0 7 - 6k = 0 k = 7/6 Hence, the ratio is 1:7/6 = 6:7 Now, the coordinates of P are (-34/13, 0) |
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| 32. |
Mayank has coins of denominations 5, 1and 50 paisa, respectively with him. The ratioof the number of these coins is 2:3 5. Thetotal cash with him is ? 62. How many coins ofeach denomination does he have? |
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Answer» Let he has 2x coins of Rs5 3x coins of Rs1 and 5x coins of 50paise =0.5rs a/q5(2x)+1(3x)+0.5(5x)=62 10x+3x+2.5x=62 15.5x=62 x=62/15.5=4 so, he has 2×4=8coins of Rs5.and 3×4=12coins of Rs1 and 5×4=20coins of 50 paise |
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| 33. |
7Tinnd the circumference of a circle of radius i5 cm. [Take π : 3.14.] |
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Answer» Given, r = 15 Circumference = 2πr = 2 * 3.14 * 15 = 3.14 * 30 = 94.2 Therefore, the circumference is 94.2 cm |
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| 34. |
The inner and the outer circumference of a circularring is 44 cm and 66 cm, respectively. Find thewidth of the ring. |
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| 35. |
Q6. If we throw a dice then find the probability of getting number3. |
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Answer» thnxx dear |
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| 36. |
Q6.If we throw a dice then find the probability of getting number3. |
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Answer» thnanx alot deat thnx alot dear |
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| 37. |
Challenge!122. If a wire is bent into the shape of a square, the area of the square is 49 cm2. When the wire is bentinto a semicircular shape, find the radius of the semicircle(Take Ďs⌠|
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Answer» Area of square = 49 cm^2Let side of square be sLet r is radius of semicircle Then,s*s = 49s = 7 As per given condition Perimeter of Square = Perimeter of semicircle Therefore,4*s = pi*r + 2r4*7 = 22/7*r + 2r28 = (22/7 + 2)r28*2 = (22 + 14)r56/36 = rr = 14/9 = 1.5 cm |
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| 38. |
12. In figure, ST Il QR, PS 2 cm and SQ 3 cm. What is the ratio ofthe area of ΔPQR to the area of Δ PST ?[CBSE 2009 (o.D), 2009 (cls3 RC and area of A ABC 81 cm2, find the area of |
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Answer» ST || RQ PS= 3 cm SR = 4cm We know that the ratio of areas of two similar triangles is equal to the ratio of squares of their corresponding sides. ar(∆PST) /ar(∆PRQ)= (PS)²/(PR)² ar(∆PST) /ar(∆PRQ)= 3²/(PS+SR)² ar(∆PST) /ar(∆PRQ)= 9/(3+4)²= 9/7²=9/49 Hence, the required ratio ar(∆PST) :ar(∆PRQ)= 9:49 |
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| 39. |
Rio ThemiValue of He functonnu mum(A)。(8,7(c)S(d ) 4- |
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Answer» The minimum of this function will be where f'(x) becomes 0 so, f'(x) = 4x-4 = 0 => x = 4/4 = 1 and the minimum value at x = 1 is = 2(1)²-4(1)+7 = 9-4 = 5 so C is the answer |
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| 40. |
zeroes26. The pattern shows the seating arrangement ofpeople around tables. Study it and find thenumber of people than canbe seated around n tables. |
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| 41. |
s, Indicate eachofthefollowingusingintegers(a) 13°C above zerob) A withdrawal of 250(c) 25 m below sea leveld) A gain of ? 500e Win by 12 goals (f) Depth of 30 m. |
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Answer» +13-250-25+500+12 there are 6 Quainton +13-250-25+500+12-30 |
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| 42. |
40% of 250 = 50% of ?(a) 200(d) 400(b) 100(e) of these(c) 150 |
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| 43. |
Find the next term of the sequence.c)2, 10,50, 250,...e)1,8,27,4,b) 3.1, 33'9 |
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Answer» please hit the like button |
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| 44. |
5-digiecWhich Qu |
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Answer» i)Here we canseethat 999 is not aperfect squareas it leaves 38 as remainder. So if 38 will be addede to 999 then it will become a 4digit number. Therefore tofind the largest 3 digit perfect squarewe will subtract 38 from 999. Hence 961 isthelargest 3 digit perfect squarewhosesquareroot is 31.ii)We know that thelargest 5 digit numberis 99999. So let us check whether it is aperfector not ? So here we canseethat 99999 is not aperfect squareas it leaves 143 as the remainder whilefindingit ssquareroot. Hence 99856 is aperfect squarewhosesquareroot is √99856 = 316. |
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| 45. |
प्रश्न 6. एक दुकानदार के पास कुल 987 कॉरपियाँथीं। उनमें से उसने 798 कॉपियाँ बेच दीं। बताओअब उसके पास कितनी कॉपियाँ शेष रहीं? |
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Answer» शेष कोपिया=987-798=189 कॉपियां |
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| 46. |
(a) 176 cmThe circumference of the circle with radius 10.5 cm is2c 66 cm |
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| 47. |
Suppose that you have a currency named zen in threedenominations 1 zen, 10 zens and 500 zens. Findthe number of different ways so that you can pay abill of 1240 zens.A. 200C. 250E. of theseB. 225D. 300 |
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| 48. |
27. In a simultaneous pair of dice throw find the probability of getting an even number oneach die. |
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Answer» Probability = possible outcomes /total outcomes Then, Probability of getting even number on each die= 3/6*3/6= 9/36 = 1/4 |
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| 49. |
HOTS questionSubtract each row and column to find the magic65(-)43N. We all share the work at home.1. Papa has to iron 8 clothes. He has ironedHow many more clothes to be ironed?2. Mini nacked 9 books in her hag Then she |
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Answer» 6-5=14-3=16-4=25-3=21-1=02-2=0 |
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| 50. |
6. A dealer marks his goods at 35% above the cost price and allows a discount of 20% on themarked price. Find his gain or loss per cent. |
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