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. |
In an arithmetic sequence the sum of 1 st 19 terms is 209 and sum of first 22 terms is 473. Then its 21 st term is |
|
Answer» rong>Answer: The 21st term of the A.P. is 88. Step-by-step explanation:GIVEN: SUM of first 19 terms of A.P. is 209 and sum of first 22 terms of A.P. is 473. Let the first term of the given A.P. be a and its common difference is d. w.k.t., Sum of n terms of an A.P. with first term a and common difference d is
On SUBTRACTING above two equations we get, 2a + 18d - (2a+21d) = 22 - 43 ⇒ 2a + 18d - 2a - 21d = -21 ⇒ -3d = -21 ⇒ d = 21/3 = 7 On putting d=7 in one of the above equations we get, 2a + 18×7 = 22 ⇒ 2a + 126 = 22 ⇒ 2a = 22 - 126 ⇒ 2a = -104 ⇒ a = -104/2 = -52 Also, general term of an A.P. with first term a and common difference d is ⇒ a₂₁ = a + (21-1)d ⇒ a₂₁ = -52 + 20×7 ⇒ a₂₁ = -52 + 140 ⇒ a₂₁ = 88 |
|
| 2. |
26. ∆ABC is a scalene triangle. If P Q and R are the midpoints of sides of a triangle then Answer the following questions:a. How many possible trapeziums are formed?b. Is the parallelogram formed a rhombus?c. How many equilateral triangles are formed?d. If the ratio of sides of AABC is 3:4:5 and the perimeter is 24cm then what is the perimeter of any trapezium formed?e.If given triangle is a right triangle then does each triangle formed a right triangle?f. How many times the perimeter of each triangle formed is that of the original trlangle? |
|
Answer» ONG>ANSWER: IMAGINE copying Step-by-step EXPLANATION: |
|
| 3. |
1b. Find the area of an equilatral triangle whoseside is 2a cm |
|
Answer» ong>Answer: |
|
| 4. |
For what value of x, the mode of the following data is 17? 15, 16, 17, 13, 17, 16, 14, x, 17, 16, 15, 15 |
|
Answer» align="absmiddle" alt="\huge{\underline{\green{\mathfrak{♡ǫᴜᴇsᴛɪᴏɴ♡}}}}" class="latex-formula" ID="TexFormula1" src="https://tex.z-dn.net/?f=%5Chuge%7B%5Cunderline%7B%5Cgreen%7B%5Cmathfrak%7B%E2%99%A1%C7%AB%E1%B4%9C%E1%B4%87s%E1%B4%9B%C9%AA%E1%B4%8F%C9%B4%E2%99%A1%7D%7D%7D%7D" TITLE="\huge{\underline{\green{\mathfrak{♡ǫᴜᴇsᴛɪᴏɴ♡}}}}">⠀⠀ For what value of x, the mode of the following data is 17? 15, 16, 17, 13, 17, 16, 14, x, 17, 16, 15, 15
value of x = 17
hope its helpful |
|
| 5. |
318. Write 6 rational numbers between 3 and3/10 |
|
Answer» ONG>Answer: 3 = 30/10 |
|
| 6. |
(-30) ÷ 10 please paper solution |
| Answer» TION is GIVEN in the ATTACHMENT above. | |
| 7. |
Compare Gauss Elimination with Gauss Seidel method |
|
Answer» ong>Step-by-step EXPLANATION: What is the main difference between Gauss ELIMINATION and Gauss-Jordan elimination in linear-algebra and matrix-algebra? What are some of the fascinating questions asked by BYJU’S STUDENTS? Most of our students are forever curious to know more about how their TEACHERS were as students. In fact, it is quite normal for Updated 2 years ago Both methods are used to FIND solutions for Gauss method end the matrix as a superior-triangular matrix and you find the solutions of a linear system by applying a regressive substitution. Gauss-Jordan do the same as an additional: turn the desired current a identity matrix. Thus, Gauss-Jordan Gauss method plus doing the operation sufficient to make the matrix triangular inferior as well, which ends in a id |
|
| 8. |
(6) The surface area of a cuboid of length l, breadth b and height h is |
|
Answer» ong>ANSWER: |
|
| 9. |
Arrange each of the following in decending order (a) (-7)/(2)+(2)/(-3) (5)/(6) (9)/(3) |
|
Answer» ong>ANSWER: 9/3, 5/6, 2/-3, -7/2 Step-by-step explanation: by converting the FRACTIONS into DECIMAL u will get UR answer |
|
| 10. |
Complete this activity and find volume of a hemisphere having radius 30cm.( π = 3.14) |
|
Answer» ONG>Step-by-step explanation: Volume of HEMISPHERE = Here, RADIUS of hemisphere, r = 30 cm Volume = |
|
| 11. |
In the given figure P is the mid point of BC writethe formule to find the qardinate of P |
|
Answer» ONG>Answer: PLEASE Mark As BRAINLIEST Answer ! : ) कृपया जवाब के रूप में चिह्नित करें ! : ) Step-by-step explanation: Please Mark As Brainliest Answer ! : ) कृपया जवाब के रूप में चिह्नित करें ! : ) |
|
| 12. |
Fill in the table of values for the equation y= 2 + x |
|
Answer» ong>ANSWER: X= -5 : y= -7 x=0 : y= -2 x=3 : y= 1 hope it will be helpful to you |
|
| 13. |
Adjacent sides of a parallelogram are in the ratio 1:3 and their perimeter is 88cm then find the length of those sides |
|
Answer» ONG>Answer: tep-by-step explanation:
Let the SIDE of given PARALLELOGRAM be X
Then use 2(l+b)
It's given that ratio of TRIANGLE 1:3
Therefore 2(x+3x)=88
2×4x=88
8x=88
X=11
Length=11cm
Breadth=33cm
This the required length and breadth |
|
| 14. |
What is galaxy???Yo whassup everyone?! |
|
Answer» Answer:- A GALAXY is a huge collection of GAS, dust, and BILLIONS of stars and their solar systems, all held TOGETHER by gravity. We live on a planet called EARTH that is part of our solar system. ... A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. Thank you~ |
|
| 15. |
Find three rational numbers between?5. 78and. 8 |
|
Answer» ONG>Step-by-step explanation: 5/1 ×4/4 =20/4 7/1×4/4=28/4 |
|
| 16. |
Express each of the ratio in its simplest form: (a) 32 : 36(b) 186: 403(e) 7 kg to 280 g3.min to 45 sec21 |
|
Answer» ong>Answer: monolith is a GEOLOGICAL feature consisting of a single massive STONE or rock, such as some mountains. Erosion usually exposes the geological formations, which are often made of very hard and solid igneous or metamorphic rock. |
|
| 17. |
Akhil walks 2/3 km from place p, towards east then from there 1 5/7 km toward west. where will he be now from p |
|
Answer» ong>Answer: monolith is a geological feature CONSISTING of a single massive stone or rock, such as some mountains. Erosion usually EXPOSES the geological formations, which are often made of very HARD and solid IGNEOUS or metamorphic rock. |
|
| 19. |
What is the common difference (d) of the A.P. 7, 1, – 5, – 11, ...? |
|
Answer» ong>ANSWER: the COMMON DIFFERENCE of the A.P.is 1-7 = -6 |
|
| 20. |
*2 Rs 50 paise ; 3 Rs 50 paise. Write the ratio between the two given quantities in simplest form.* 1️⃣ 5:72️⃣ 7:53️⃣ 5:64️⃣ 4:5 |
| Answer» ONG>ANSWER: | |
| 21. |
Construct angle ABC in which BC = 7.2 cm then angle B is 45°. AB - AC = 3.5cm |
|
Answer» ONG>ANSWER: |
|
| 22. |
Draw the graph of the equation y-x=2.find the value of the graph the value of y when x=4 |
|
Answer» ONG>Answer: PLEASE Mark As Brainliest Answer ! : ) कृपया जवाब के रूप में चिह्नित करें ! : ) Step-by-step explanation: Please Mark As Brainliest Answer ! : ) कृपया जवाब के रूप में चिह्नित करें ! : ) |
|
| 23. |
Find two ratonal numbers between -3/4 |
| Answer» ONG>Step-by-step EXPLANATION: | |
| 24. |
Is (0,2) a solution for the equation 5x+3y=6? |
|
Answer» ONG>ANSWER: x = 0 y = 2 5(0)+3(2) = 6 0+6 = 6 6=6 |
|
| 25. |
Ernie owns a coffee shop where he sells tea and coffee He knows that. On a normal day the coffee shop sells 90 cups of tea3 cups of coffee are sold for every 2 cups of lea sold• The income from a cup of tea is £160• The income from a cup of coffee is 12.20The profit from the sale of tea and coffee is of the total income from the sales of tea and coffeework out the total profit from the sales of tea and coffee on a normal day for Ernie££ |
|
Answer» ong>Step-by-step explanation: |
|
| 26. |
If sin theta =4/5 what is the value of cos (90-theta) |
|
Answer» ONG>Answer: 11 Step-by-step explanation: cos 6/5 |
|
| 27. |
WIf the sum of 15 bervations is 420then their mean is |
|
Answer» ONG>Answer: ● the SUM of 15 bervations is 420 then their mean is 28. |
|
| 28. |
A cylinder has a base of radius 7cm and height 17 cm. what is it volume |
|
Answer» > Here, it is STATED that the given cylinder is having a base of radius 7 cm whereas the height of the cylinder is 17 cm respectively. We have to find out the VOLUME of the cylinder. For that we will use the formula for finding the volume of the cylinder. Formula Used : Given :
If π value is not given , we'll take it or consider it as 22/7 PLUGGING in the respective values , we GET : |
|
| 29. |
1) आजी म्हणजे घराचा आधार' हे विधान सोदाहरण पटवून दया |
| Answer» ONG>Answer: | |
| 30. |
1 + x is the reciprocal of 1 - x. Then x is |
|
Answer» ong>ANSWER: |
|
| 31. |
The sum of three consecutive numbers is 210.Find the largest of these numbers? |
|
Answer» ong>ANSWER: The three consecutive NUMBERS are= 69,20,71 And the largest number among these is 71 69+70+71 =210. Step-by-step explanation: Hope this helps. Mark me as brainliest. THANK you. |
|
| 32. |
(-4)^2*(-6)^3please answer fast |
|
Answer» ONG>Answer: 16 × -216 = - 3456 Step-by-step EXPLANATION: mark me as brainliest |
|
| 33. |
Describe, sketch and label the focus,vertex and directrix of the parabola4y^(2) +8y - 8x+7=0 |
|
Answer» ONG>ANSWER: where are you from BROTHER? |
|
| 34. |
3. Find the L.C.M of X2 + X, X2 – 1, X2 – X. (3 marks) |
|
Answer» ong>ANSWER: hope it HELP you Step-by-step EXPLANATION: this is your ans |
|
| 35. |
2. What is the number of proper subsets of a given finite set with n elements?(a) 2n - 1 (b) 2n - 2 (c) 2 - 1(d) 2" - 2 |
|
Answer» set CONTAINS 'n' elements, then the number of PROPER SUBSETS of the set is 2n - 1. In general, number of proper subsets of a GIVEN set = 2m - 1, where m is the number of elements. |
|
| 36. |
The nth order difference of a polynomial of nth degree is (n+1)th order of the same degree is a.1 b.2 c.3 d.0 |
|
Answer» ong>Answer: it's DEGREE is 1 Step-by-step explanation: |
|
| 37. |
Write the equation of the line is parallel to the y-axis at a distance of 7 units from it's left |
| Answer» ONG>ANSWER: | |
| 38. |
The arthimetic mean of 5,6,9,10,6,12,3,6,11and10is |
|
Answer» ALIGN="absmiddle" alt="\huge{\underline{\red{\mathfrak{♡ǫᴜᴇsᴛɪᴏɴ♡}}}}" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%5Chuge%7B%5Cunderline%7B%5Cred%7B%5Cmathfrak%7B%E2%99%A1%C7%AB%E1%B4%9C%E1%B4%87s%E1%B4%9B%C9%AA%E1%B4%8F%C9%B4%E2%99%A1%7D%7D%7D%7D" title="\huge{\underline{\red{\mathfrak{♡ǫᴜᴇsᴛɪᴏɴ♡}}}}">⠀⠀ the arthimetic mean of 5,6,9,10,6,12,3,6,11and10is
=(5+6+9+10+6+12+3+6+11+10) ÷10 , = 78 ÷10
=7.8
|
|
| 39. |
Rajesh bought an old car for rs 20000 and sold it at a loss of 12% what was his selling price? |
|
Answer» en To Find
We know thatProfit and loss : |
|
| 40. |
A bag is containing the cards of letters of word “ MATHEMATICS ”. One card is drawn randomly from the bag. What is the probability of getting the letter “ M ” ? |
| Answer» ONG>ANSWER: | |
| 41. |
Draw the graph of the equation y-x=2.find from the graph the value of y when x=4 |
|
Answer» ONG>ANSWER: xfxfxhfzhfsyrsrsrusryyfsdksaiosshshdddssrssrysisuzchssfzf cxjgxxugi gdufsffhiSfupYygaouffyfpisdrustifhdgii |
|
| 42. |
What advantage has Lagrange’s formula over Newton? |
|
Answer» ong>Answer: Step-by-step explanation: Lagrange's FORM is more EFFICIENT when you have to INTERPOLATE SEVERAL data sets on the same data points. Newton's form is more efficient when you have to interpolate data incrementally. |
|
| 44. |
5 + root 3 divide 7 + 4 root 7 = a+ b root 3 |
|
Answer» ONG>Answer: THATS a very hard questions i CANT explain it but if you found this answer please. ommwnt me ok |
|
| 45. |
Kripya ise solve kre! |
|
Answer» trong>S O L U T I O N : ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Let US take, ⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Then, ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Where V' is the region bounded by X² + Y² + Z² = 1. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Again we take, ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Then, ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ The new region be V" = [0, 1; 0, π; 0, 2π] ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Now, X² + Y² + Z², ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Continuing the integration, we get, ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ [Put r = sint, then dr = cost dt. When r changes from 0 to 1, t changes from 0 to π/2] ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ |
|
| 46. |
((5) The fraction 25 converted to percentage is(a) 20%(b) 30%(c) 40%d) 50 % |
|
Answer» the answer of the question you asked because |
|
| 47. |
Class 8 maths give answer fast |
|
Answer» ONG>Answer: 2) 1-5? =insidant point |
|
| 48. |
The median of first six prime numbers is |
|
Answer» ONG>Answer: 2 3 5 7 11 follow PLZ and MARK me BRAINLIEST plz |
|
| 49. |
MathematicsA cylinder has a base of radius 7cm and height of 17cm what is it volume |
| Answer» TION is GIVEN in the ATTACHMENT above. | |