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. |
4050. He sper50 on the transportation. He sells them a7. A shopkeeper buys 5 fans forgain of 15%. Find the-selling price of a fan. |
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Answer» thanks it's right |
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| 2. |
In a mixture of 56 litres, the ratio of milkand water is 5 2. Another 8 litres ofwater is added to the mixture. Findthe ratio of milk and water in theresulting mixture |
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| 3. |
A mixture of petrol and kerosene oil contains 89% petrol. The amount of kerosene oil in 250 litres mixture is? |
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| 4. |
1)If15orangescosuRs 110, what do 38-granges cost ? |
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| 5. |
ow many millions make one crore? |
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Answer» 10 lakh = 1 million and 100 lakhs = 1 crore so, 1 crore is = 100/10 = 10millions |
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| 6. |
दिखाइए । 21-41 81 |
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Answer» please like if the solution helped you. |
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| 7. |
(9) How many lakhs make 6 millions? |
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Answer» 60 lakhs make 6 million 10 lakh is the right answer😎😎 60 lakhs is the correct answer of the given question 6 million(or 6,000,000) is therefore equal to 0.6 crores (60lakhs). 60 lakh is the correct answer |
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| 8. |
EXERCISE 9Aif 15 oranges cost Rs 110, what do 39 oranges cost? |
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| 9. |
EXERCISE 9A1. i 15 oranges cost R 110, what do 39 oranges cost? |
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Answer» 15 oranges=1101 orange=110/15=7.33339 oranges=7.33×39=286 |
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| 10. |
A milkman has 20 l of milk. He sells 15 3/5 l of milk. What quantity of milk is left to be sold? |
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| 11. |
4x7 7y-137ă If15x-7then the value of x+ yis:- |
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| 12. |
28 litres mixture of milk and water the ratio of milk and water is 5:2. Find the velnmilk and water 'separately |
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Answer» thanks thanks simran |
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| 13. |
EXERCISLJA1. If 15 oranges cost 110, what do 39 oranges cost?nurcan he hou |
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Answer» 285.999999999 285.999999999 |
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| 14. |
i311.B-10 2 and C=20 -2 1]Example 16 if A= 2 0 31, Balo 2 and c-fi 2 3 -4713 -1 21 41-4]A(EC), (AB)C and show that (AB)C = A(BC). |
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| 15. |
Example If the difference between simple interest andcompound interest on a certain sum of money for 3 yr at 10%per annum is 31, the sum isheSSC (10+2) 2011 |
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| 16. |
(The degree and order of differential equation\left(\frac{d^{2} y}{d x^{2}}\right)^{2}=\left(y+\frac{d y}{d x}\right)^{\frac{1}{2}}yis which of the following?)dxdx |
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Answer» free it from radicals, the degree is 4 and order is 2 |
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| 17. |
If 15 oranges cost70, what is the cost of 39 oranges? |
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Answer» If you find this solution helpful, Please give it a 👍 Cost of 15 oranges is =₹70Cost of 1 oranges is =₹70÷15=4.66Find the cost of 39 oranges cost of 39oranges is=39×4.66=₹182 so the right answer is=₹ 182 |
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| 18. |
Q27 A chair and a table cost rs 1200. By selling the chair at a profit of 20%and the table at a loss of 10%, there is a loss of 4% on the whole.4Find the cost price of the chair and the table. |
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Answer» Answer: Cost price of chair = 233.33 RsCost price of table= Rs 966.66 |
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| 19. |
Example 4: Find a quadratic polynomial, the sum and product of whose zeroes are-3 and 2, respectively |
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Answer» the quadratic equation = x²-3x+2 |
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| 20. |
हे... 3.15(V) दे + xi = नि |
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Answer» Explanation : x/3 + 3/x = 15/x by taking 1/3x common in left side (x*x + 9)/3x = 15/x x*x + 9 = 45 x*x = 45 - 9 = 36 by taking square root both the sides x = -6,6 Solution : x = -6,6 If you find this answer helpful then like it |
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| 21. |
31Example 4 : Find a quadratic polynomial, the sum and product of whose zeroes are3 and 2, respectively |
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| 22. |
G+x=9- xi?k |
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Answer» Ans :- 4x - 6 = x + 9 4x - x = 9 + 6 3x = 15 x = 15/3 x = 5 |
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| 23. |
1. A survey shows that 63% of the Americans like cheesewhereas 76% like apples. If x% of the Americans like bothcheese and apples, then |
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Answer» Let us take % as no. of people. Now no. of americans who like cheese,n(c) =63 No. of americans who like apples n,(a)= 76 n(C U A) = n(A) + n(C) - n(C n A)100 = 76 + 63 - X100 = 139 - XX = 139 - 100X = 39 |
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| 24. |
AnB have?2. A survey shows that 80% of the Indians like apples, where53% like oranges.. What percentage of Indians like both apples aoranges. |
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| 25. |
l.Explain the fallacy in the following |
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Answer» multiplication and division in root is always valid when there is no negetive number inside the root is present. other wise for example √-9/-4 = √9/4 , = 3/2.. but this is not correct. |
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| 26. |
scientific name of prawn |
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Answer» The scientific name of Indian prawn is Penaeus indicus thank you |
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| 27. |
Addison's disease is caused byHyposecretion of Para hormoneHypersecretion of corticoidsHyposecretion of corticoids Hypersecretion of insulin |
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Answer» Addison's disease, also called adrenal insufficiency, is an uncommon disorder that occurs when your body doesn't produce enough of certain hormones. In Addison's disease, your adrenal glands, located just above your kidneys, produce too little cortisol and, often, too little aldosterone |
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| 28. |
le igune, PQ and QR are two mirrors whichare jsined at 9 at an angle of 30 to eachother. If incident ray AB is parallel to mirror ABC, then find the values of 4BCQ, LCBQANSWERSHEET |
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| 29. |
PHYSICS-XIExample 1. ABCDits diagonals. Prove that:is a parallelogram and AC and BD are(i) ACAD-2 BC and (ii) AC-BD2 AB. |
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| 30. |
ujnone of these30. The area of a rhombus is 192 cm2. If one of its diagonal is 16 cm, then the other diagonal is(b)(c) 28 cm(d) none of these(a)250 cm24 cm |
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Answer» As we know that area of a rhombus is equal to the product of length of the diagonals divided by 2. ∴Area=(16×x)/2=>192×2=16 × x=>x=24 ∴Option (b) is correct. |
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| 31. |
Fig. 11.307. ABCD is a rectangle (Fig. 11.31) in whichDP and BQ are perpendiculars from D and Brespectively on diagonal AC. Show that-(i) triangle ADP congruent triangle CBQ(ii) angle ADP= angle CBQ(iii) DP = BQ |
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| 32. |
What is the difference between a straight angleand a complete angle? |
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Answer» A straight angle typically measures 180 degrees (that is, half of one complete revolution). Unit of measurement is radians or degrees. Anangleequal to 1 turn (360° or 2π radians) is called a fullangle,complete angle, roundangleor a perigon. |
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| 33. |
In ∆ABC, if AD is the median, then show that AB^2+AC^2=2(AD^2+BD^2) |
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| 34. |
7.Find the supplement of the following angles:(i)of complete angle(ii)half of straight angle. |
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Answer» Anangleequal to 1 turn (360° or 2π radians) is called a fullangle,complete angle, or a perigon. (i) 1/3 of 360 = 120° suppliment of 120° = 180-120 = 60° (ii) straight line angle = 180° suppliment of 180° = 180-180 = 0° |
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| 35. |
At which one of the following times is the angle between theone straight angle?hands of a clock exactly |
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Answer» At 6pm it forms a straight lineAt 6am it forms a straight line wrong answer |
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| 36. |
(7) If in a two digit number, the digit at unit place is x and the digit at tens place is,5, then thenumber is(a) 50x +5(b) 30x +5(c) x + 50(d) 5x |
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Answer» The number will be 50+x thanks bro |
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| 37. |
The digit in the unit place of (2x41)2 +1 (where x is a positive integer(a) 1(b) 5(c) 3(d) none of these |
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Answer» (2*4ⁿ)² = 2²×4²ⁿ = 4*4²ⁿ = 4^(2n+1) = 4^(odd power) as 2n+1 will always be odd now 4^(odd power) will always have 4 as its last Digit.. => 4¹ = 4 , 4³ = 64 and so on.. so. now adding 1 to it.. , the last Digit will be 4+1 = 5 option B |
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| 38. |
135. A right pyramid stands on a squarebase of diagonal 10V2 cm. If theheight of the pyramid is 12 cm, thearea (in cm2) of its slant surface is(A) 520(B) 420(C) 360(D) 260 |
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Answer» Side of a square = 1/root2 *10 root2 = 10 cm Slant height = sqrt(5^2 + 12^2)= sqrt(25 + 144)= sqrt(169) = 13 cm Lateral Surface area = 1/2*Perimeter of base*slant height = 1/2*40*13= 260 cm^2 (D) is correct option please show me the diagram |
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| 39. |
Find the missing number, if a certain rule is followedeither row-wisesor column-wise.6 2 7 6 303 |
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Answer» In first row, ( 8 - 5 ) * 4 = 12 in second( 7 - 2 ) * 6 = 30 so in third( 9 - 4 ) * 7 = 35 |
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| 40. |
surface area of pyramid |
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Answer» The general formula for thelateral surface areaof a regular pyramid isL.S.A.=(1/2)pl wherep represents the perimeter of the base andlthe slant height. The general formula for thetotal surface areaof a regular pyramid is T.S.A.=12pl+B whereprepresents the perimeter of the base,lthe slant height and B the area of the base. |
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| 41. |
5.Using only a ruler, draw an acute angle. an obtuse angle and a straight angle. |
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| 42. |
EXERCISE 18.6I. In AABC is a right angle with <B = 90°. Can ZC be an obtuse angle?2. ΔΡQR is a right triangle with <P 90°. Can LQ also be a triangle? |
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| 43. |
s.Using only a ruler, draw an acute angle, an obtuse angle and a straight an |
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| 44. |
va -vb7.Out of a group of swans, 7/2 times the square root of the total number of swansare on the bank of a pond. Two swans are in the water. The total number ofswans is?) 16(B) 17(C) 18(D) 19of the equation ax2 + bx+ c 0 be reciprocal of a root of the equation |
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Answer» Let the total no. of swans = xNo. of swans playing on the shore = 7/2 √xRemaining swans = 2A/Q x=7/2 √x+2x-2 = 7/2 √x2(x-2) = 7√x4(x-2)² = 49x4(x²-4x+4) = 49x4x²-65+16 = 0(x-16) (4x -1) = 0x-16 = 0 or 4x-1 = 0x = 16 or x = 1/4Since, the no. of swans cannot be 1/4∴ x = 16The total no.of swans = 16 |
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| 45. |
40. The product of a rational number and itsreciprocal is ..41. The sum of a rational number and its additiveinverse is .................12. The reciprocal of a positive number is ......13. The additive inverse of a negative number is |
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Answer» Ans 40: 1Ans 41: 0Ans 42: positiveAns 43: positive (40) 1(41) 0(42) positive(43) positive 40. 141. 042. positive 43. positive |
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| 46. |
2.. 4. The measure of an interior angle of a 24 sided regular polygon is?(1 1150 (2) 2150(3) 1659(4)170° |
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Answer» The internal angle of a regular n_sided polygon 180-360/n=180-360/24 =180-15=115 |
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| 47. |
The unit place of (2013)2013 isa. 3C.b. 9d. 1 |
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Answer» Tricky approach cyclicity of 3 is 42003^ 2003can be written as3 ^2003now divide 2003 by 4remainder will be 33^1= 3,3^2= 9 3^3= 27,3^4= 81that means 3^3= 277 is answer |
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| 48. |
A hexahedron is also called as(A) cube(C) pentagonal based pyramid (D) none of these5.(B) cuboid |
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Answer» Ahexahedron(plural: hexahedra) is anypolyhedronwith sixfaces. Acube, for example, is aregularhexahedron with all its facessquare, and three squares around eachvertex. |
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| 49. |
Is it possible to have a polyhedron with any given number of faces?a pyramid). |
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Answer» thank you |
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| 50. |
, where xヂ0Find the reciprocal of |
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Answer» In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/x or x^-1, is a number which when multiplied by x yields the multiplicative identity, 1. Hence reciprocal is = -x |
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