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.
| 66451. |
1/(x %2B a %2B b)=1/b %2B 1/a %2B 1/x |
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| 66452. |
1/(x %2B 2*a %2B b)=1/b %2B 1/(2*a) %2B 1/(2*x) |
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Answer» let a=1 b=0 x=0 LHS=½RHS=½ |
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| 66453. |
\frac 1 a %2B b %2B x = \frac 1 a %2B \frac 1 b %2B \frac 1 x , \quad a %2B b \neq 0 |
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Answer» 1/a+b+x - 1/x = 1/a + 1/b -(a+b)/x(a+b+x) = (a+b)/ab Cancel (a+b) from both sides & cross multiply -ab = x(x+a+b) x^2+(a+b)x+ab = 0 (x+a)(x+b) = 0 x = -a or -b Ans |
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| 66454. |
b) C-2D x[C-4)+(+)] [C-21DxC-4)] +[(-21) XC-6)] |
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Answer» (-21) × [- 4 - 6] = [84] + [126]- 21 × - 10 = 84 + 126210 = 210 is correct answer please like and accept as best answer 210 is the correct answer of the given question 210 is right answer of this question. please like my answer |
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| 66455. |
Write the co-efficent of x2 in each of the following(i) x2 + 4x +4 |
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Answer» In the given equationcoefficient of X ^2 is 1 co-efficent of the equation is 1 |
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| 66456. |
Find the next number in the series?300,600,1800, _?_ [Multiple patternscan exist but the pattern chosenand decided by the company will beconsidered final]240036007200 |
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Answer» 2400 will be the correct answer ! 3600 is the correct answer. this is rite answer 2400 3600,7200 is the correct answer 3600 is correct answer |
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| 66457. |
Thesurfaceareaof sphere is (5767) cm?. Find its volume.shots. eac |
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| 66458. |
I'm a School Ž of the Student au givelsIf there are 240 boys Find the mmberOF givel in School |
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Answer» So 3/7 of total are girlsremaining={1-3/7}= 4/7 are boysso4/7= 2401 = 240*7/4= 420so girls wi be3/7 of 420= 180thanks so3/7of total are girlsremains={1-3/7}=4/7are boysso4/7=2401=240*7/4=420so girls wi be3/7 of420=180 |
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| 66459. |
TIB) T and Lila nd |
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Answer» Option (A) is correct because 3 and 4 are zero value functions . Solution? |
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| 66460. |
5. (2+53 +55) is(a) a rational mmber(b) a natural mmber (c) a integer number (d) au rational number |
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Answer» D irrational number it is an irrational number hence option d is correct answer option d is the correct answer of the given question it is irrational number so option d is the right answer D is correct answer in this questions ,because its not form P/q its irrational number |
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| 66461. |
10. How many thousands make a crore?11. Find the difference between the number 738 and that obtained on reversing its digits12. What comes just after 9547999? |
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Answer» 1000 thousands make one crore |
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| 66462. |
19. If an angle is equal to its supplement, find the angle. |
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| 66463. |
10. How many thousands make a crore11. Find the difference between the numbe72. What consist ofon the number 738 and that obtained on reversing is dipts |
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Answer» how many hundreds make 10 thousands |
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| 66464. |
14. Answer the following questions:-(0) Find the difference between the place values of the two nines in 79520936(11) Find the difference between the place value and the face value of 7 in 27650934.(iii) How many 6-digit numbers are there in all?(iv) How many 4-digit numbers are there in all?(v) Find the difference between the number 738 and that obtained on reversing its digits.(vi) What comes just after 95479999?(vii) What comes just before 99000000?(viii) Write all 3-digit numbers using 2, 3, 4, taking each digit only once.15. Express each of the following numbers as a Roman numeral:-(a) 23 (b) 29 (c) 37 (d) 45 (e) 59 (6) 78(g) 84 (h) 89 (1)95(1)99(k) 226 (1) 475 |
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Answer» sorry I don't know this 1)7,95,20,93690,00,000 - 900 = 8,999,1002)2,76,50,93470,00,000-0=70,00,0003)greatest 6 digit no. - greatest 5 digit no=9,99,999 - 99,999=9,00,0004)greatest 4 digit no - greatest 3 digit no = 9,999-999=9,000 |
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| 66465. |
An angle is five times its supplement. Find the angle. |
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| 66466. |
\log (x+y)=\log 3+\frac{1}{2} \log x+\frac{1}{2} \log y |
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Answer» thank you but it is a prove that question |
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| 66467. |
(a) 3In how many way can the letters of the word 'SIMPLETON' be rearranged?(b) 43(c) 9!-2(d) 8 |
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| 66468. |
1/(2*x %2B 2*a %2B b)=1/b %2B 1/(2*a) %2B 1/(2*x) |
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Answer» 1/2a+b+2c=1/2a+ 1/ b +1/2c X=-2a , -b is the correct answer of the given question 1/2a+b+c=1/2a+1/b+1/x; 1/2a+b+x-1/x=1/2a+1/b; x-2a-b-x/x(2a+b+x)=1/2a+1/b; -2a-b/x(2a+b+x)=2a+b/2ab; x(2a+b+x)=-2ab; 2ax+bx+x^2+2ab=x(2a+x)+b(2a+x)=(2a+x)(x+b)=; 2a=-x=-b |
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| 66469. |
-(-a^2 %2B 1)/(a^2 %2B 1) - acos((-b^2 %2B 1)/(b^2 %2B 1))=2*atan(x) |
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| 66470. |
Evaluate eac(i) 2^3/* 2^2 |
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| 66471. |
+) Which of the following Roman numawels incorect :-9 Xc (6) x D (COM (d) UL |
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Answer» xc=90 XD ,DM ,vl is wrong XC- IS THE CORRECT ANSWERS DM is th correct and all are wrong Option (a) is correct sarita, from my side I think that the correct answer is ×c ☺️ iska ans hai (C) hai XC means option a is correct XC=90XD.DM AND BL are worng xc = 90therefore , xc is correct.. CV=90xD,DM,vo is wrong correct answer is xc because xc=90 xc is correct answer a is correct answer of roman numer xc=90 xD,dm,vl is worng xc is correct answer sister In this question the option (A) is correct. option a is correct because XC=90 but XD, SM, VL is wrong options (a) xc =90 is correct. XC is the correct roman numerals. xc=90 xD, dm, vl is wrong option A (XC) is a correct one Vl is wrong ............. xcis right answer of this question 😂🤣 please like my answer xc=90 is write either is wrong option A and C right XC IS CORRECT ANSXC=90 xc is the best way of answer XC=90 is correct and other wrong XC correct answer hoga xc carreakt answer ha xc = 90 इसलिए, xc सही है xc-is the correct Answer a is correct answer the answer is (a)first. Answer is option A correct a ha (xc) (b)or (c)or (d) wrong h option (a) is the right answer aaaaaaaaaaaaaaaaaaa aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa XC is the correct answer dear SARITA😊😊😊 xc= 90 XD ,vl. wrong c is a correct answer a-90, b-490. c-1500 d-45 X can be subtracting from L and C ;XC=(100 - 10= 90) 90 XC is the right ans xc is the correct answer xc = is the right answer friend xc=90 others are wrong kaun class ka question hai correct Roman number is XCXC=90,XDDMVI xc is answer and XD ,OM,VL is wrong XC is correct answer xc =90 is right XD, DM ,Vl is wrong answer cc ccccccccccccccccccccv . XC=90 is Right Option xc is correct roman no a is right XC C-100; X-10 XC=90. option a is the correct answer i.e. xc the correct option is a and c |
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| 66472. |
(e) Six h. Write eac(a) 10 |
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Answer» 5/10 can be written as 0.5 |
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| 66473. |
13.Mr. Khanna spent 83% of his salary and saved Rs 1870. Calculate his monthly salary. |
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| 66474. |
Mr. Khanna bought a motorcycle for 32,475. He spent 7200 on its accessories. On sellingthe motorcycle, he made a profit of 4250. Find the selling price of the motorcycle. |
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| 66475. |
1 Complate the wardls ly using corect leisrlSemartLil beco ause |
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Answer» (i) smart(ii) because SmartBecauseThis is the answer |
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| 66476. |
Name the four realms of the Earth |
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Answer» lithospherebiosphereatmospherehydrosphere |
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| 66477. |
Is the answer corect? Tr not what is the corfeetICTWhat is the capacity of the largest vessel which enontaining 12 litren, 24 litres md ak itre exnet mmber of tines?empty the oil from three vessels |
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Answer» By prime factorization factors of 32=2×2×2×2×2factors of 24=2×2×2×3factors of 48=2×2×2×2×3 HCF=2×2×2=8the capacity of the largest vessel which can empty the oil from three containers is 8 |
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| 66478. |
2. Find the supplement of 98° |
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Answer» let the supplement be x98°+x=180°x=180°-98°x= 82°=answer |
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| 66479. |
\overline{a}=2 i-3 j+6 k, \overline{b}=2 i+j-4 k then provethat (\overline{a}+\overline{b}) \cdot(\overline{a}-\overline{b})=|\overline{a}|^{2}-|\overline{b}|^{2} |
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| 66480. |
ance between the number 738 and that obtained on reversing its digits11. Find the difference between the number 738 and thattot after 95479992 |
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| 66481. |
2. Find the supplement of 98ă |
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Answer» supplement angle =180so, 180–98=82 |
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| 66482. |
Find the supplement angle of 429 |
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| 66483. |
24. The sum of 3rd and 5th terms of an A.P. is 38 and sum of 7th and 10th terms is 83. Findthe A.P |
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| 66484. |
Que.6 How many words can be formed form the word SIMPLETON'using all letters together? |
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Answer» Since the word ‘simpleton’ consists nine letters, there are nine ways to rearrange it. n permutation n = n! 9 permutation 9 = 9! = 9*8*7*6*5*4*3*2*1 = 362,880 There are 362,880 ways to rearrange the word. |
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| 66485. |
Integral(1/(sqrt(x(x %2B 1))), (x, 0, 1))=log(2*sqrt(2) %2B 3, 10) |
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Answer» Hi, Here is the answer to your question. |
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| 66486. |
-sqrt(x - 1) %2B sqrt(3*x %2B 1)=2 |
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| 66487. |
acos((2*x - 3*sqrt(-x^2 %2B 1))/sqrt(13)) |
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| 66488. |
In Fig. 7.21, AC = AE, AB = AD andBAD-2 EAC. Show that BC = DE. |
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| 66489. |
15. Mother wants to divide ?36 between her daughters Shreyaand Bhoomika in the ratio of their ages. If age of Shreya is15 years and age of Bhoomika is 12 years, find how muchShreya and Bhoomika will get. |
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| 66490. |
\left. \begin{array} { l } { 87 + 92 = 18 } \\ { 57 + 83 = 13 } \\ { 12 + 61 = 4 } \\ { 62 + 31 = \dots ? } \end{array} \right. |
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Answer» 93 Is the correct answer (8+7)+(9-2)-4=18(5+7)+(8-3)-4=13(1+2)+(6-1)-4=4(6+2)+(3-1)-4=6 |
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| 66491. |
15. Mother wants to divide36 between her daughters Shreyaand Bhoomika in the ratio of their ages. If age of Shreya is15 years and age of Bhoomika is 12 years, find how muchShreya and Bhoomika will get. |
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| 66492. |
(ii) On decreasing a number by 18%, it becomes 697 Find the number13, Mr. Khanna spent 83% of his salary and saved ? 1870. Calculate his monthly salary. |
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Answer» Thanks |
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| 66493. |
(83*738)*(9*(overline*(c*h))) |
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Answer» 49237*3995*738*83*9=108438956784090 last digit 7*5*8*3*9 = 0 Ans |
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| 66494. |
(4) 83 â 125 |
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| 66495. |
What is the supplement of these angles?(a)35(b)132(c)83 |
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Answer» addition of supplement angles is 180 so supplement angles are following a) 145 b) 48 c) 97 |
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| 66496. |
if a+b+c=15, a^2+b^2+c^2=83 find a^3+b^3+c^3-3abc. |
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Answer» (A + B + c)=15; squaring ( a^2+b^2+c^2+2(ab+bc+cs)=225; (83)+2(ab+bc+ca)=225; 2(ab+bc+ca)=225-83=142; (ab+bc+ca)=71; . a^3+ b^3+c^3-3abc=( a+b+c)(a^2+ b^2+c^2-( ab+bc+ca) =15(83-71)=15(12)=180; a^3+b^3+c^3-3abc=180 answer will be 180 perfect plz like my answer everyone |
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| 66497. |
In a llgm ABCD, prove that the sum ofany two consecutive angles is 180° |
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| 66498. |
atan((-sqrt(-x^2 %2B 1) %2B sqrt(x^2 %2B 1))/(sqrt(-x^2 %2B 1) %2B sqrt(x^2 %2B 1))) |
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Answer» the correct answer is 2 |
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| 66499. |
sides of ZAIn figure, AC =AB, AB = AD and <BAD-<EAC. Showthat: BC = DE10. |
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| 66500. |
Prove that the bisector of any two consecutive angles of I Igm intersect at right angle. |
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