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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
६५ । ममाक ५९९ १९।।। उदाहरण III. बहुपदों (x - 3x + 2) तथा (3' - 6 x + x + 1) का गुणनफल ज्ञात कीजिए। |
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Answer» x^5-9x^4+21x^3-14x^2-x+2 is thr righy answer..... |
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| 502. |
कोई धनराशि चक्रवृद्धि ब्याज से पहल वष क अन्त म650 रु. तथा दूसरे वर्ष के अन्त में 676 रु. हो जाती है तोवह धनराशि है- |
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Answer» free fire name is jandar4745k 726 answer hi my name is akash roy |
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| 503. |
18. बेकिंग पाउडर का एक अवयव सोडियम बाइकार्बोनट है।इसका दूसरा अवयव है।(क) ऐसीटिक अम्ल (ख) जिंक सल्फेट ।(ग) टार्टरिक अम्ल (घ) चूना-जल |
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Answer» दूसरा अवयव पोटेशियम बाइटार्टरेट और टार्टरिक अम्ल हैं। Tartaric acid is the right answer other component is Tartar( potassium bitartrate )formula C4H5KO6 answer n. third os correct |
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| 504. |
. 5 15 और 20 के ल. स. और म ४ ही. अनुपात |
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Answer» LCM of 5, 15, 20 5 = 5 15 = 3 × 5 20 = 2² × 5 LCM = 5 × 3 × 2² = 60 HCF of 5, 15, 20 5 = 5 15 = 3 × 5 20 = 2² × 5 HCF = 5 Ratio of LCM to HCF 60 : 5 12 : 1 |
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| 505. |
OFind the circumference of a circle of radius 28 mm. Take π =7 |
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| 506. |
of the following circles, given that(a) radius = 14 mm (Take π = 22)7 |
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Answer» Area of circle = pi × r²= 22/7 × 14² = 22× 2×7= 44×7= 308 mm² |
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| 507. |
Find the area of the following circles, given that:(a) radius= 14 mm (Take π=7)2. |
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| 508. |
Find the area of the following circles, given that:(a) radius 14 mm (Take pi=22/7) |
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| 509. |
a 44 cmb 132 cme 264 mmhe radius of the basc of a cireular tent is 7 m. Find the circumterence of the circulat base of tacis 06 m Find ius diumctes |
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Answer» Radius=7m circumference of circle=2π r=2 x 22/7 x 7=44cm hit like if you find it useful |
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| 510. |
ă10.000 1s invested at 5%interest rate pa Find the interest at the end ofoneyear1 |
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Answer» PTR/10010000*5*1/100500 rupees will be the interest |
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| 511. |
Rationalise the denominator of the following surd and hence find its value it 35-22366and V3 =1.732: -JS +33 |
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| 512. |
34. The sum of two numbers is 2490. It6.5% ofone number is equal to 8.5%of the other. Then the numbers are:a) 1411, 1079 b) 1410. 1079c) 1411, 1078 d) 1410.1078 |
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Answer» Let one number is x and other is yx+y=2490(6.5/100)x=(8.5/100)y65x=85y13x=17y x+13x/17=249030x=2490*17x=83*17=1411y=2490-1411=1079 Option a is correct |
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| 513. |
find the area of the sector of a circle with radius 4cm and of angle 30°.also find the area of the corresponding major sector |
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Answer» 30/360*π*4*416π/316*3.14*3= 150.72cm^2area of major sector330/360*3.14*16( theta will be 360-30°)46.0cm^2 |
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| 514. |
13. The moon is about 384000 km from the earth and its path around the earth is nearly circular. Findthe circumference of the path described by the moon in one complete revolution about the earth(useT 3.14)ito boundary A man walks around it, exactly once, |
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| 515. |
14. The moon is about 384000 km from the earth and its path around the earth is nearly circulathe circumference of the path described by the moon in one complete revolution about the(useTt 3.14). |
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| 516. |
g a tape-recorder for Rs 600 a loss of Rs 100 is suffered Find its cost price.Also, find loss per cent. |
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Answer» S.P.=600loss=100so C.P.=700so loss percentage=100/700*100=14.28% |
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| 517. |
Find the area of the sector of a circle with radius 4cm and of angle 30°. Also, find the areaof the corresponding major sector. (Use 3.14)20o |
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Answer» thanks |
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| 518. |
12 Find the area of the sector of a circle with radius 4 cm and of angle 30°. Also, find the area of the correspondingmajor sector (Use n- 3.14). |
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Answer» Thanks |
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| 519. |
12. Find the area of the sector of a circle with radius4 cm and of angle 30°. Also, find the area of thecorresponding major sector. (Take pi = 3.14) |
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| 520. |
30. Find the area of the sector of a circle with radius 4cm. and of angle 30'. Also, find the area of theCorresponding major sector (use 1=3.14) |
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| 521. |
SGMIMalli donald I of her salary to a vidensashram I the only was sent on schodthese brinses int was left with 721000Find her mently Salaryte/drenthe salary of food After |
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| 522. |
The eccentricity of the hyperbola 25x-9y-144 is34 34123 3(d)34 |
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Answer» The given equation is (25x^2)/144 – (9y^2)/144 = 1 or [(x^2)/(12/5)^2] – [(y^2)/(12/3)^2] = 1 On comparing this equation with the standard equation of hyperbola [(x^2)/(a^2)] – [(y^2)/(b^2)] = 1 i.e., we obtain a = 12/5 and b = 12/3 We know that a^2 + b^2 = c^2 c^2 = 144/25 + 144/9c^2 = 144(34)/25*9c = 4 root(34)/5 Therefore, Eccentricity, e = c/a = 4 root(34)/5 /(12/5)= root(34)/3 (b) is correct option |
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| 523. |
Malli donated 1 of her salary to a vidouseshran 1 & her aldry was spent on schodde Schildres If the salary of food Afterthose evrenses was left with 21000Find her montly salaryrepare a list of properties of rational |
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| 524. |
Et3.3277313gait let the number be ac andyĐ. Т.oc-4:26 --- 0C = 34 ----subsinding the vawe of a = 34*-4-2634 - 4=26 |
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Answer» Given equationsx - y = 26.......(1)x = 3y............(2) Put value of x from eq(2) in eq(1)3y - y = 262y = 26y = 26/2 = 13 Now put value of y in eq(2)x = 3*13 = 39 |
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| 525. |
15x=34*34 - 26*26 |
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Answer» 15x = 34*34-26*26 = (34-26)(34+26) = 8*60 x = 8*4 = 32 |
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| 526. |
The centre of a circle is (a + 2, a -1). Find the value of a if the circle passes through (2,-2)[Ans. a 3]and (8, -2). |
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Answer» Equations of circle =>r^2= (x-a-2)^2 + (y-a+1)^2circle is passing through (2,-2)=r^2 = (2-a-2)^2 + (-2-a+1)^2 = (-a)^2 + (-a-1)^2circle is also passing through (8,-2) = r^2 = (8-a-2)^2 + (-2-a+1)^2 = (6-a)^2 + (-a-1)^2radius is same so (-a)^2 + (-a-1)^2 = (6-a)^2 + (-a-1)^2a^2 = 36 + a^2 - 12a12a = 36a = 3 |
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| 527. |
74 tan 44 tan 34 = tan 74 — tan 44 — tan 34, |
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Answer» To prove:tan 7a tan4a tan 3a=tan 7a -yan 4a-tan 3aFormula used tan(7a) = tan(3a + 4a) RHS:tan(7a) - tan(4a) - tan(3a) => tan(3a + 4a) - tan(4a) - tan(3a) => (tan(3a) + tan(4a)) / (1 - tan(3a) * tan(4a)) - tan(4a) - tan(3a) => (tan(3a) + tan(4a)) / (1 - tan(3a) * tan(4a)) - (tan(3a) + tan(4a)) => (tan(3a) + tan(4a)) * (1 / (1 - tan(3a) * tan(4a)) - 1) => (tan(3a) + tan(4a)) * (1 - 1 + tan(3a) * tan(4a)) / (1 - tan(3a) * tan(4a)) => (tan(3a) + tan(4a)) * tan(3a) * tan(4a) / (1 - tan(3a) * tan(4a)) =>tan(3a + 4a) * tan(3a) * tan(4a) => tan(7a) * tan(3a) * tan(4a)=LHSHence provedLike if you find it useful |
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| 528. |
6. Harish bought a hair dryer for7. A nerson hur5400 including 8% VAT. Find the price before VAT was added.e ofă200000 at o discount of I 000f VAT is charoed at ih |
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| 529. |
)10.68)205.9Write each of the following as decimals(a) Seven-tenths(c) Fourteen point sixe) Six hundred point eightWrite each of the following as decimals:(b) Two ten(d) One hur5(b) 3(c) 200+60+5+121010210Vrite the following decimals as fractions. Reduc |
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Answer» 5/10=0.53+7/10=3+0.7=3.7200+60+5+1/10=265+0.1=265.14 2/10=42/10=4.23/2=1.52/5=0.412/5=2.4 |
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| 530. |
The equivalent resistance of two resistors is 10 Ωand 2.4 Ω when connected in parallel. Fhen connected in seriesind the value of resistors |
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| 531. |
Determine the equivalent resistance ofgiven two resistors connected in parallel. |
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| 532. |
The coordinates of the centroid of the triangle whose vertices a(1, 2),(4, 7) aná (7,-3) are(b) square(d) none of these(d) none of theseThe axis of x divides the join of the points (2, 5) and (1, 9) in th(a) 5:9 internally(c) 2:1 internally(b) 5:9 externally(d) 2: 1 externally |
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Answer» Answer Right |
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| 533. |
\left(a^{2}\right) \times\left(2 a^{22}\right) \times\left(4 a^{26}\right) |
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| 534. |
The centroid divides the median in the ratioa) 2:1b) 1:3c) 3:1d) 1:4 |
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Answer» The correct answer is option a. 2:1the median divide centroid in the ratio. the right answer is a |
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| 535. |
. fG is the centroid of the triangle ABC and if G' is the centroid of another triangle A'B'C' then prove that: |
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Answer» Like if you find it useful |
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| 536. |
जय + दर \ /_),AQA’A—/-* weA T = २९.0 | —tsA =B .. |
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Answer» thanks |
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| 537. |
की न तह जेगा 050 दो, हा3 Wea — |
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Answer» x * x^2= x^[1+2] = x^3 Xab + X^2 ca= Xa(b + Xc) |
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| 538. |
Definition of centroid |
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Answer» TheCentroidis a point of concurrency of the triangle. It is the point where all 3 medians intersect and is often described as the triangle's center of gravity |
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| 539. |
18. The coordinates of the centroid of a triangle are (1, 3) and two of its vertices are (-7, 6) and(8, 5). Find the third vertex. Also, find the coordinates of the centroid of the triangle when the thirdvertex is (2, 4) |
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| 540. |
24.Centroid of (3.-5),7.) (10, -2) isIS |
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Answer» Centroid (X,y)x=3+(-7)+10/3=-4+10/3=6/2=3y=-5+4-2/3=-3/3=-1hence centroid (X,y)=(-1,3) it's not in the option...the options are (6,3), (3,6),(-3,6),(2,-1)...it answer does not match any of the above |
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| 541. |
Mid section formulaArea of triangle formulaFormula of Centroid |
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| 542. |
Which of the rational numbersis greater. Insert three rational numbbetweenandso that all the five numbers are in ascending order of their valued |
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| 543. |
\left. \begin{array} { r } { 150 } \\ { \times 26 } \\ \hline \end{array} \right. |
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Answer» 150 × 2.6 = 390 |
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| 544. |
Credit products of a bank include -----a. Flexi Depositb. No frills Savings accountc. Kisan credit cardd. All of the above |
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Answer» No frills savings account |
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| 545. |
(12/13)^4*(13/12)^(-8)=(12/13)^(2*x) |
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Answer» (12/13)⁴ × (13/12)^(-8) =(12/13)^2x =(12/13)⁴ × (12/13)^(8) =(12/13)^2xSince base are equal4+8=2x12=2xx=12/2=6 x=6 is correct answer. X=6 is the right answer |
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| 546. |
what are credit |
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Answer» Credit is the ability of a customer to obtain goods or services before payment, based on the trust that payment will be made in the future. |
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| 547. |
A tuning fork vibrates 200 times a second. The waves set up travel at a speed of 340mt/sec. Find the period and wavelength of waves24.[0005, 1.7 metrel |
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| 548. |
\lim _{x \rightarrow 1 / 2} \frac{8 x^{3}-1}{16 x^{4}-1} |
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| 549. |
2. Find six rational numbers between 3 and 4. |
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Answer» Since we want six numbers, we write 3 and 4 as rational numbers with denominator 6 + 1 =7 multiply in numerator and denominator by 7 we get3×(7/7)=21/7 4×(7/7)=28/7 Thus 6 rational numbers between 21/7,28/7 is 22/7 , 23/7, 24/7 , 25/7 , 26/7, 27/7 when we want 6 number between two rational number. We must add 1 to 6= 7. multipy the numerator and denominator 3x(7/7)= 21/7and 4x(7/7)=28/7and you will get exact 6 number between 3 and 4 . The numbers are 22/7,23/7,24/7,25/7,26/7,27/7 22/7,23/7,24/7,25/7,26/7 3×7 = 21 and 4×7= 28 rational number are 22,23,24,25,26,27 |
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| 550. |
\begin{array}{l}{\text { Find } r \text { if }(a)^{14} C_{2 r} \cdot^{10} C_{2 r-4}=143 : 10} \\ {\text { (b) }^{10} C_{r+2} :^{10} C_{r}=10 : 21}\end{array} |
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