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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. |
हे If A = B=60°, verify that(i) cos(A—B)=cosA cosB + sin(पं) sin (A - B) = sin A cos B - 005.tanA - tan B' i)jtan(A-B)= —————S ) 1+tanA tanB |
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Answer» tan (60-60) = tan60-tan60/1+tan60*tan60 LHS = tan 0 = 0 RHS = √3-√3/1+√3*√3 = 0/1+3 = 0 Like my answer if you find it useful! |
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| 2. |
If A and B are acute angles, such that tan A=2, and tan B=2 and3tanA + tanB1- tan A. tanB then find (A+B)B+C2If A, B and C are interior angles of a Triangle ABC, then prove tB+C2sin |
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| 3. |
TanA=(m|m+1) & TanB=(1|2m+1) then Tan(A+B) |
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| 4. |
t minutes past 2 pm, the time needed by the minutes hand of a clock to shosm was found to be 3 minutes less thanminutes. What is the value of e |
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| 5. |
tCTBIhe the4inutes past 2 pm, the time needed by the minute hand of a clock to show 3 pm wases. Find t.ORund to be 3 minutes less thanminut4NCERT Fomul |
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Answer» Given time needed by the minutes hand show (t2/4) – 3Hence the quadratic equation becomes, (t2/4) – 3 = 60 – t(t2– 12)/4 = 60 – t(t2– 12) = 240 – 4 tt2– 12 – 240 + 4 t = 0t2+ 4t – 252 = 0t2+ 18t – 14t – 252 = 0t(t + 18) – 14(t + 18) = 0(t + 18)(t – 14) = 0(t + 18) = 0 or (t – 14) = 0∴t = - 18 or t = 14Since t cannot be negative, t = 14 |
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| 6. |
How many minutes pass between:(a) 2 o'clock and quarter past3? |
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Answer» Why 15 |
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| 7. |
F. Subtract the following:(1) from(ii) from i |
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| 8. |
9/16 ko percentage me badle |
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Answer» 9/16 in percentage =9/16×100=56.25% we have to multiply 9/16 by 1009/16×100=56.25% |
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| 9. |
1. To divide a line segment AB in the ratio 4 : 7, aray AX is drawn first such that BAX is an acuteangle and then points A1, A2, A3, are located atequal distances on the ray AX and the point B isjoined to which point of A. |
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| 10. |
Can you cut the ray BX at any other point?You will see that as ZB is acute, the arc fromA of radius 4 cm cuts the ray BX twice. |
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Answer» A.B.C যথাক্রমে 6000 টাকা,7500 টাকা ও 9000টাকা দিয়ে একটা ব্যবসা শুরু করল।4 মাস পরে A আরও 3000 টাকা ওই ব্যবসায় নিয়োগ করল এবং আরও 4 মাস পরে C তার মূলধনের অর্ধেক তুলে নিল বছরের শেষে দেখা গেল লভ্যাংশর হিসাবে A.B এর চেয়ে 225 টাকা বেশি পেয়েছে। ব্যবসাতে মোট লাভের পরিমান নির্নয় করো। |
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| 11. |
2. If a movie started in 7: 15 pm and ended on 9:00 pm thenfind the duration of movie in minutes ? |
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| 12. |
43. 5 minutes past 3, in the afternoon, is writtenas: |
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Answer» it's 3:05 in the afternoon so it will be written as 3:05 PM 3:05 pm it's is the answer so simple question |
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| 13. |
Subtract $4 a-7 a b+3 b+12$ from $12 a-9 a b+5 b-3$ |
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Answer» subtracting12a-9ab+5b-3-(4a-7ab+3b+12)=8a-2ab+2b+9 Answer me in long form 12a-9ab-5b-3 -4a-7ab+3b+12sol=8a-2ab-2b+9 |
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| 14. |
2. SubtractVINfrom the sum ofVioand12 |
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| 15. |
6. Subtract (-1) from the sum of 16 and (-12). |
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Answer» Sum of 16 and (-12)=16-12=4subtract (-1)4-(-1)=4+1=5 the correct answer is 5 sum of 16 and (-12)=16+(-12)=16-12=4then subtract(-1) from 4=(-1)-4=-5 |
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| 16. |
Subtract 4a-7ab+3b + 12 from 12a- 9ab +5b-3 |
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| 17. |
Q.11 29- [25 - {6 + 2 of (7 + 9 - 14) }] का मान निम्नलिखित में से किसके बराबर है? |
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| 18. |
(a) Subtract 4a-7ab +3b+ 12 from 12a-9ab + 5b 3 |
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Answer» 12a - 9ab + 5a - 3 - ( 4a - 7ab + 3b + 12 ) = 12a - 9ab + 5b - 3 - 4a + 7ab - 3b - 12 = 8a - 2ab + 2b - 15 If you find this answer helpful then like it. |
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| 19. |
Q.11 29- [25 - {6 + 2 of (7 + 9 - 14)}] का मान निम्नलिखित में से किसके बराबर है? |
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| 20. |
I f Subtract 4a-7ab + 3b + 12 from 12a -9ab + 5b |
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| 21. |
(a Subtract 4a-7ab 3b + 12 from 12a - 9ab + 5b -3 |
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| 22. |
27. Point O is the common end point of the rays OA, OB, Oc, OD and OE,how that ZAOB+ZBOC+ ZCOD+ DOE+LEOA 360° |
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| 23. |
A ray has ____ end point. |
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Answer» A ray has one end point |
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| 24. |
. In the given figure, 1 lIm and a transversalt cuts them. If 4 = 120°, find the measureof each of the remaining marked angles.201 |
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| 25. |
A ray has.......end point. |
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Answer» A ray has one end point |
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| 26. |
1. In the given figure, 1 |l m and a transversalt cuts them. If 21-120°, find the measureof each of the remaining marked angles.4外,5 |
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Answer» thanks mere bhai |
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| 27. |
v)A line has one end point. |
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Answer» Arayis aline segment thathas only one endpoint. A ray is a line segment that has only one end no only one end point a ray is the line sagment that have only one end point. A ray has one end point |
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| 28. |
In the adjoining figure, AB/CD are cut by a transversal t at E and F respectively. If1 -70°, find the mesusure of each of the remaining marked angles.ビ |
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| 29. |
EXERCISE 7C1. In the given figure, 1|Im and a transversalt cuts them. If 21 = 120°, find the measureof each of the remaining marked angles.687 |
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| 30. |
Can a rectangle be8.Cmle bĂŠ Calithe adjoining figure, I Il m ll n.Find La, Lb, Lc and 4a.125 |
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Answer» please solve question explain it deeply |
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| 31. |
नया ab acba —b’ bcl=4a bco eh e’ | |
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| 32. |
(A)(C)13.) 12247190(B)(D)228222.3018f(A)(C)1214(B)(D)109ä˝ |
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Answer» 12 पुरुष 14 दिनों में काम करते हैं। 12x14 दिनों में 1 आदमी।18 महिलाएं 12 पुरुषों के समान काम करती हैं। 1 महिलाएं 12/18 = 2/3 पुरुषों के समान काम करती हैं। 8 आदमी + 16 महिलाए समान काम करते हैं। 8 + 2x16/3 m. तब कुल समय हैx = 12x14 / (8 + 32/3) दिन = (168/56) x3 = 9 दिन। |
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| 33. |
more aIL Baichung's father is 26 years yourger than Baichung's grandfather and 29 yearsdern Baichung. The sum of the ages of ali the three is 135 years. What is the |
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| 34. |
LU25 2911...12 TGT 06 (upto 12 terms(iv) 7, 30 31(1-2 3) +...21 |
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| 35. |
A solid sphere of radius 10.5cm is melted and then recast into smaof radius 3.5cm and height 3cm. Find the numbers of cone so fors |
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| 36. |
\frac { 12 } { 11 } - \frac { 5 } { 11 } + \frac { 4 } { 11 } |
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| 37. |
Draw a circle with center Of and radius 3cm. |
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Answer» Take a point O and measure an arc of 3 cm on compass from a scale Now with the compass pointer on the point O, draw a circle. Figure:- |
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| 38. |
43.Show that that the altitude of a right circular cone of maximum volumes that can beinscribed in a sphere of radius Ris, 4R |
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Answer» . |
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| 39. |
Show that the altitude of the right circular cone of maximum volume that can beinscribed in a sphere of radius r is 4r/3 |
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| 40. |
\left. \begin{array} { l } { 19 ^ { 0 } + 349 \times 74 ^ { \circ } } \\ { \frac { 8 ^ { 7 } } { 8 ^ { 4 } \times 8 ^ { 3 } } } \\ { \frac { a ^ { 9 } } { a ^ { 3 } } \times a ^ { 6 } } \end{array} \right. |
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Answer» A. 7^100 B. (1+1)*1 = 2 C. 8^7/8^7 = 1 D. a^15/a^3 = a^12 |
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| 41. |
\frac { ( 5 ) ^ { 3 } \times 8 \times 5 t ^ { 8 } } { 5000 \times t ^ { 3 } } |
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| 42. |
\frac { 1000 \times 24 \times 400 } { 24 \times 12 \times 8 } |
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Answer» 1000x24x400/(24x12x8) =4166.6666666 |
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| 43. |
If one man can complete a work in 1 day, then in howmany days 5 men together can complete the work whichis 5 times?Godave for 16000 |
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Answer» only one day 1 man complete work = 1 daythen work into 5 times 5 men together work to complete in only one day 5 men work together and complete work in 1 /5 a day only one day ...as one can complete one in one day only one day as one can complete one in one day is the |
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| 44. |
hoorem 5.1 : Two distinct lines cannot have more than one point in common. |
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| 45. |
जाJlen3l |
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Answer» 2/17 + 5/17 + 4/17=11/17 . 11/17 is the answer of the following 11/17 is the answer of the question 11/17 is the correct answer of the given question 11/17 is the correct answer 11/17 is the correct answer 11/17 is the answer of the given question simple LCM=11/17answer 11/17 is your answer of questions 11/17is your right answer 11/17 is the right answer |
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| 46. |
32y 42452 - 3l=;4 g i |
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Answer» please like my answer if you find it useful |
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| 47. |
Find using algebraic identity (3l + 4)2? |
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| 48. |
SOLVED EXAMPLESFrom a point P, 10 cm away from the centre of a circle, a tangent PTof length 8 cm is drawn. Find the radius of the circle.I et 0 he the centre of the given circleE1(CBSE 2002] |
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| 49. |
Calculate the length of tangent from a point 15 cm. away from the centre of acircle of radius 9cm. |
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Answer» thanks |
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| 50. |
Calculate the length of tangent from a point 15 cm. away from the centre of a circle ofradius 9gm. |
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