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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. |
25x'2'-1 factorise... |
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Answer» (5x-1)(5x+1) Step-by-step EXPLANATION: |
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| 2. |
The quotient of the input and eight |
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Answer» Please MARK me as BRAINLIEST.. |
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| 3. |
A bag contains 18 balls out of which x balls are red. (i) if one ball is draw at random from the bag,what is the probability that it is not red ? (ii) if 2 more red balls are put in the bag , the probability of drawing a redball will be times the probability of drowing a red ball in the first case find the value of x. |
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Answer» os
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| 4. |
Q.22. Find the missing side of the right triangle. |
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Answer» Answer: 15^2-9^2=225-81=144 144 is the square of 12. So the MISSING side LENGTH is 12. Step-by-step explanation: |
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| 5. |
3. Find the perimeter of PQRS given in the figure pq=2 qr=6 |
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Answer» Step-by-step EXPLANATION: |
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| 6. |
Please answer this. b |
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Answer» Step-by-step explanation: hhhyy6 I will be in touch with each eueueueu you NEED to be there at WORK and EVERYONE EU W |
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| 7. |
Add:3xy^2-2y^3+x^3,5x^y-xy^2-3x^3,8x^3+5y^3 and 9x^2y-xy^2 |
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Answer» jfruko855fhk986tfg Step-by-step EXPLANATION: |
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| 8. |
Find the fourier series of the futh define b-1/2-TERLOf(0) =r/2o un an |
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Answer» Step-by-step EXPLANATION: DEFINE b -1/2 -TERLO f(0) = r/2 o UN an |
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| 9. |
1by4 of 24=hdhrhdhruduej |
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Answer» Answer: 1/4×24=6 Step-by-step EXPLANATION: that is CROSS multiplication HOPE IT HELPS |
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| 10. |
Find the median of 3,5,1,2,4,6,0,2,23 |
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Answer» Answer: 4 Step-by-step EXPLANATION: there are 9 numbers, so it is not an divisible of 2. |
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| 11. |
A). Fin the domain and range of the function y = x÷x2-3x+2 |
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Answer» Answer: the WORLD and the world and the world and GGG I need to be a good time fch BHI NAHI hai NA KI nahi hai na ki nahi hai na ki nahi hai na ki |
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| 12. |
Phukt Points⠀⠀ ⠀⠀⠀ ⠀⠀⠀ ⠀⠀⠀ ⠀ |
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Answer» Hepatitis MEANS inflammation of the LIVER. The liver is a vital organ that processes nutrients, filters the blood, and FIGHTS infections. When the liver is INFLAMED or damaged, its FUNCTION can be affected. risky can you inbox me pls |
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| 13. |
Find the common factor of 4a2b3, -12a3b, 18a4b3 |
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Answer» Since 45 a b 2 , 30 a 4 b 4 , 36 a 2 b 3 contain both numbers and variables, there are two STEPS to find the GCF (HCF). Find GCF for the numeric part then find GCF for the variable part. Steps to find the GCF for 45 a b 2 , 30 a 4 b 4 , 36 a 2 b 3 : 1. Find the GCF for the numerical part 45 , 30 , 36 2. Find the GCF for the variable part a 1 , b 2 , a 4 , b 4 , a 2 , b 3 3. MULTIPLY the values together Find the common factors for the numerical part: 45 , 30 , 36 The factors for 45 are 1 , 3 , 5 , 9 , 15 , 45 . Step-by-step explanation: please MAKE me brainlist |
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| 14. |
Find the square of :() V3+ v2. (i) 3+25. (4) |
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Answer» ) \left(32\right)^2=\left(30+2\right)^2=\left(30\right)^2+2\times30\times2+\left(2\right)^2(32) 2 =(30+2) 2 =(30) 2 +2×30×2+(2) 2
[\because\left(a+b\right)^2=a^2+2ab+b^2∵(a+b) 2 =a 2 +2ab+b 2 ] = 900 + 120 + 4 = 1024 (ii) \left(35\right)^2=\left(30+5\right)^2=\left(30\right)^2+2\times30\times5+\left(5\right)^2(35) 2 =(30+5) 2 =(30) 2 +2×30×5+(5) 2
[\because\left(a+b\right)^2=a^2+2ab+b^2∵(a+b) 2 =a 2 +2ab+b 2
= 900 + 300 + 25 = 1225 (iii) \left(86\right)^2=\left(80+6\right)^2=\left(80\right)^2+2\times80\times6+\left(6\right)^2(86) 2 =(80+6) 2 =(80) 2 +2×80×6+(6) 2
[\because\left(a+b\right)^2=a^2+2ab+b^2∵(a+b) 2 =a 2 +2ab+b 2
= 8100 + 540 + 9 = 8649 (iv) \left(93\right)^2=\left(90+3\right)^2=\left(90\right)^2+2\times90\times3+\left(3\right)^2(93) 2 =(90+3) 2 =(90) 2 +2×90×3+(3) 2
[\because\left(a+b\right)^2=a^2+2ab+b^2∵(a+b) 2 =a 2 +2ab+b 2 ] = 8100 + 540 + 9 = 8649 (v) \left(71\right)^2=\left(70+1\right)^2=\left(70\right)^2+2\times70\times1+\left(1\right)^2(71) 2 =(70+1) 2 =(70) 2 +2×70×1+(1) 2
[\because\left(a+b\right)^2=a^2+2ab+b^2∵(a+b) 2 =a 2 +2ab+b 2
= 4900 + 140 + 1 = 5041 (vi) \left(46\right)^2=\left(40+6\right)^2=\left(40\right)^2+2\times40\times6+\left(6\right)^2(46) 2 =(40+6) 2 =(40) 2 +2×40×6+(6) 2
[\because\left(a+b\right)^2=a^2+2ab+b^2∵(a+b) 2 =a 2 +2ab+b 2 ] = 1600 + 480 + 36 = 2116 |
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| 15. |
(B)i) Solve the following simultaneous equations graphically.3x - y = 2, 2x - y = 3 |
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Answer» Step-by-step EXPLANATION: The given EQUATIONS are 3x-y=23x−y=2 2x-y=32x−y=3 Substitute x=0, to find the y-intercepts. 3(0)-y=2\Rightarrow y=-23(0)−y=2⇒y=−2 2(0)-y=3\Rightarrow y=-32(0)−y=3⇒y=−3 The y-intercept of lines at (0,-2) and (0,-3) respectively. Substitute y=0, to find the x-intercepts. 3x-(0)=2\Rightarrow x=\frac{2}{3}3x−(0)=2⇒x= 3 2
2x-(0)=3\Rightarrow x=1.52x−(0)=3⇒x=1.5 |
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| 16. |
A refrigerator is marked at 7,200 and is sold at 16,300. Find the discount and discountTumko hi bhabi boli xD Haa haa ab yehi sunna baki tha xD |
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Answer» Answer: FINDING the discount: Discount = MP - SP Discount = Rs 7200 - Rs 6300 Discount = Rs 900 Finding the discount PERCENTAGE: Discount % = (100 x Discount) / MP% Discount % = (100 x 900)/7200 Discount % = 90000/7200 % Discount % = 12.5 % |
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| 17. |
X=1/2 હોય તો x+y=10 માં y= કેટલા થાય |
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Answer» x=1\2 = 0.5 x+y =10 0.5 +y =10 y = 10-0.5 y =9.5 |
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| 18. |
31. T is the tangent drawn to the circle from point S which is outside of the circle with centre P having radius33 cm. If ST = 56 cm, find the distance of S from P.centre, drawcircle. And32.contract |
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Answer» Answer: in this By pythagoras THEOREM (PS)square=(ST)square+(PT)square (PS)square =1089+3136 (PS)square=4225 PS=65cm |
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| 19. |
Show that the sequence a_n=3(-1)^n+2^n-n+2 is a solution of the recurrence relation an=a_(n-1)+2a_(n-2)+2n-9 |
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| 20. |
2,10,47,205,945,? it is urgent and subject is reasoning |
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Answer» Given :- 2,10,47,205,945,? it is urgent and subject is reasoning . SOLUTION :- As we can see that, the difference the terms is random . so, using difference of difference rule we get, 2 10 47 205 945 3097 8 37 158 740 2152 29 121 582 1412 92 461 830 369 369 Hence, 3097 is the next term of the series. Learn more :- 423:24::534:60::752:70::245:? Use inductive reasoning to determine the next TWO terms in the sequence: A , 6 , D , 16 , H , 46 , M , 136 |
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| 21. |
In a city, 40% are female, 45% are male and remaining, are children what percent are children |
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Answer» Answer: The total percentage of children is 15 % Step-by-step EXPLANATION: Hope it is HELPFUL |
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| 22. |
(34) A cylinder is closed at both ends by 28cm high cones.The radius and height of the cylinder are 21cm and 50cm.Find TSA. |
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Answer» Answer: |
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| 23. |
Among the following not a property of aquadrilateral isAFour sidesBFour verticesСFour anglesDOpen figure |
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Answer» OPEN figure Step-by-step EXPLANATION: |
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| 24. |
. Subtract 4a-7ab+3b+12 from 12a-9ab+56-3. |
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Answer» -8a+2ab-2b +9 Step-by-step explanation: 4a-7ab+3b+12 12a-9ab+5b-3 --------------------- -8a+2ab-2b +9 ---------------------- |
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| 25. |
Write the lcm of x^2y^2, x^3y^4 and x^4y^3. |
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Answer» Answer: Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that GENERATE most of the chemical energy needed to POWER the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small MOLECULE CALLED adenosine triphosphate (ATP).
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| 27. |
if a sphere and cube has a same volume, then the ratio of the surface of the sphere to that of the cube is |
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Answer» Step-by-step explanation: Let the radius of sphere is r and side of cube is x Then volume of sphere= 3 4
πr 3
And volume of cube=x 3
x 3 = 3 4
πr 3 ⇒x= 3
3 4
π
×r ⇒ x r
= 3
4π 3
Then SURFACE area of sphere =4πr
And surface area of cube =6x 2
Then ratio of sphere to the cube = 6x 2
4πr 2
= 3 2π
( x r
) 2
= 3 2π
( 3
4π 3
) 2
= 3
6
3
π
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| 28. |
EXERCISE 1B1. Using prime factorisation, find the HCF and LCM of:(i) 144,198 |
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Answer» Answer: lcm = 18*2*2*2*11= Step-by-step explanation: make me a BRAINALIST please |
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| 29. |
X=4 y=6 (x(4)+3(y)-3(2(x)-y+2 |
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Answer» Answer: = 4(4)+3(6)-3[2(4)]-6+2 = 16+18-24-6+2 = 36-30 = 6 |
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| 31. |
Where should an object be placed from a converging lens of focal length 20cm,so as to obtain a real magnified image |
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Answer» Answer: A convex lens of FOCAL LENGTH 20 cm forms a real and magnified image when the object is placed between 20 cm and 40 cm.
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| 32. |
what must be added to the polynomial 2x³-3x²-8x, So that it leaves a remainder 10 when divided by 2x+1 |
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Answer» Step-by-step EXPLANATION: +10X |
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| 33. |
Given 7 points with integer coordinates on a 2-D plane, what can be the maximum number of equilateraltriangles they can form?(equilateral triangles are the triangle with all sides equal) |
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Answer» Given : 7 points with integer COORDINATES on a 2-D plane,
To Find : what can be the maximum number of equilateral triangles they can form Solution: Lets take any 3 points out of 7 points A ( a , b) , B = ( c , d) , C = ( e , f) AREA of Triangle = (1/2) | a (d - f) + c (f - b) + e (b - d) | now integer coordinates Hence Area of triangle will be rational number Area of Equilateral Triangle = (√3 / 4) (side)² (side)² = lets take AB = ( a - c)² + ( b - d)² which again a rational number Hence Area of Equilateral Triangle = (√3 / 4) * rational number as rational number /4 = also Rational number = √3 * Rational number IRRATIONAL number * non zero Rational number = irrational number Hence Area of Equilateral Triangle = irrational number But from integer coordinates on a 2-D plane we get Area of triangle will be rational number Hence both the STATEMENTS contradicts So its not possible to have an Equilateral triangle with integer coordinates on a 2-D plane So There can not be any triangle irrespective of number of points Learn More: find the area of triangle having vertices at (8,1) triangle whose area is 12 cm² is transformed under enlargement ... |
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| 34. |
Please solve 295 x305 |
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Answer» HERE IS YOUR ANSWER . I HOPE IT MAY HELP YOU . PLEASE MARK ME AS A BRAINLIEST . THANK YOU |
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| 35. |
Express 56–√56 in the form of n−−√n in square root |
Answer» In the RADICAL FORM, the square root of 56 can be represented by √56. The SIMPLEST radical form of square root of 56 is√56 = √(4 × 14) = 2 √14. |
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| 36. |
The greatest factor of a number is dash itself |
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Answer» The NUMBER Step-by-step EXPLANATION: |
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| 37. |
What is the coefficient of x in the expression 4x + 3y?(a) 1(b) 2(C) 3(d) 4 |
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| 38. |
The rate (in mg carbon/m3/h) at which photosynthesis takes place for a species of phytoplankton is modeled by the function P = 120I I2 + I + 1 where I is the light intensity (measured in thousands of foot-candles). For what light intensity is P a maximum? I = thousand foot-candles |
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Answer» Answer: Light intensity = L =1 Step-by-step explanation: The given FUNCTION is: (Equation.1) Taking derivative of the whole equation: = =120 = = For first derivative test, there is a maxima. for that , we NEED to take: L+1 =0 and L-1 =0 we GET: L= -1 or L=1 Since light intensity cannot be negative so, L=1 put this in equation 1: P = P= 40 which is the maximum value of P (At L=1) |
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| 39. |
suresh divided a three digit number by 21 instead 12.The quotient was less by 24.what should be the correct quotient?? |
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Answer» Step-by-step explanation: |
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| 40. |
Raj bought a radio for rs. 360.he sells that for 20% gain, what is the profit and selling price? |
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Answer» Step-by-step EXPLANATION: jajajajsjjsnnsnsnsnwkwiiwiiw |
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| 41. |
what must be subtracted from x^4+2x^3-2x^2+4x+6 so that the result is exactly divisible by x^2+2x-3? |
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Answer» Answer: Answer The GIVEN expression is +2x 3 −2x 2 +4x+6 The DIVISOR is x 2 +2x−3 Use long division method to divide the given expression by x 2 +2x−3 x 4 +2x 3 −2x 2 +4x+6=x 2 +1+ x 2 +2x−3 2x+9
The remainder is 2x+9. It means if we subtract (2x+9) from given expression, then it is exactly divisible by x 2 +2x−3. I HOPE this will help you |
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| 42. |
FindthemedianX1042ع |
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Answer» x 10 11 12 13 14 15 f 1 7 5 8 for a frequency distribution, So, total number of observation =(1+4+7+5+9+8)=34 It is a even number. So, median is the value of average of VALUES at ( 2 n
) th and ( 2 n+2
) th . ∴ Here, median is the average of the values at ( 2 34
) th or 17 th position and ( 2 34+2
) th or 18 th position. x 10 11 12 13 14 15 f 1 4 7 5 9 8 position 1 1+4=5 5+7=12 12+5=17 17+9=26 26+8=34 So, value of x at 17 th position is 13 and at 18 th position is 14. ∴Median=( 2 13+14
)= 2 27
=13.5. |
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| 43. |
A tin can hold 16L 400ml of mustard oil. How much more mustard oil is required to fill it to its capacity? |
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Answer» tititututii55iti5i5i5i tjtuuttuuxtjxj 59titxyoypodyosttifkgyo595o6ood Step-by-step EXPLANATION: gjtijzgkyoyoupoyyoyoyoyoyoylylylksjttiti5otitoyotetoittiitjttj5w5etwts5o6esyyo6o5irstjjyftdtstjtdtdtdts |
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| 44. |
Write the equation y-7 =5x in general form |
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Answer» This will be 5x-y+7=0 |
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| 45. |
Arun pays *196 to a shopkeeper to buy 7 books, each costing the same. What is the cost of1 book? |
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Answer» Answer: BOOKS cost is 90 per suns is last minute change your notification DELIVERY settings and it's important to me shirou with the Havato for the day before yesterday at school and it's important to me shirou with the GOOD work you have RECEIVED this email |
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| 46. |
Construct a quadrilateral ABCD in which AB= 3.5cm, BC = 4.5cm, CD =4 cmAD=5.5 cm and diagonal AC = 6 cm. Write the steps of constructions. |
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Answer» Answer: Draw a line SEGMENT AB = 3.5 CM. With A as center and radius of 4.5 cm, draw an ARC. With B as center and radius of 6 cm draw an arc CUTTING the previous arc. Mark the point of intersection of these arcs as D. |
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| 47. |
1 people can travel in a train. How many people can travel in 7 such trains |
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Answer»
Answer7 PEOPLE can TRAVEL in 7 TRAINS .
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| 48. |
18 ÷53 na Dashansh Chinn 3 cche true or false ask me |
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Answer» 2.944444 is your answer PLEASE MARK me as brainlist Step-by-step EXPLANATION: |
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| 49. |
Find the value using prime factorisation method. I can mark you as brainlist when you can answer me first. |
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Answer» √1.2321 = 1.11
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| 50. |
Find the smallest number which when divided by 5 or 11 leaves a remainder 4 and is greater than theremainder. |
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Answer» Answer: 3 Step-by-step EXPLANATION: because it is a GREATER |
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