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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.
| 9901. |
7x² - 6x + 9/17 = 0 |
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| 9902. |
947347 |
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| 9903. |
The pair of equation 6x-10y=7 and -6x+10y=9 have |
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Answer» No solution No solution |
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| 9904. |
Is √3 irrational or not |
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Answer» Yes it is irrational Root 5 n\' 2 is also Yes irrational Yes it is irrational number. √3is irrational number Yes,,it is |
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| 9905. |
Solve x+y=10 and. x-y=2 |
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Answer» X=6, Y=4 X=6 , Y=4 x=6,y=2 |
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| 9906. |
Yhhh |
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| 9907. |
The HCF of 95 and 152 is |
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Answer» 19 760 760 760 760 |
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| 9908. |
In a family of three children, find the probability of having at least two boys |
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Answer» 2/3 2/3 |
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| 9909. |
Which website is best for class 10th math mcq? |
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Answer» Padhle. in Buy rd Sharma, you will get a large amount of mcq questions My cbse guild |
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| 9910. |
If 2 and 3 are the zeroes of ax² + bx + 6, then a+b = |
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Answer» Minus of four -4 |
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| 9911. |
What is the smallest natural number |
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Answer» 1 1 , One 1 I1 1 |
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| 9912. |
A quadric poly neomial whose sum of zeros is 3 and one of zeroes is 0 |
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Answer» What is ****** X 2 minus 3 x X^2 - 3x x2(square)-3x |
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| 9913. |
If 2 and 3 are the zeroes of ax2+bx+6 |
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| 9914. |
11+3 |
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Answer» Chodha Fourteen 14 14 14 |
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| 9915. |
Solve for x and y by cross multiplication method- x/a+y+b=2 and ax-by=a²-b² |
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| 9916. |
All trigonometric functions in term of cosec A |
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| 9917. |
2. Find a quadratic polynomial if sum and product of its zeroes are 2√3 and 2 respectively |
| Answer» Equation will be k(x^2-2√3x+2) | |
| 9918. |
Chapter 7.1 |
| Answer» Distance formula | |
| 9919. |
The zeros of X2-2x-x are |
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Answer» 0,3 3/2 , 1/2 3/2,1,2 |
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| 9920. |
(I)2x-y=3 (ii) x+3y=5 Solve by substitute method? |
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Answer» Right answer Y=2x-3 Put the value of Y in x+3y=5 x+3(2x-3) =5x+6x-9=57x=14X=2Y=4-3Y=1 |
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| 9921. |
What is the name of the acid which help in the process of digestion in stomach? |
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Answer» Hydrochloric acid Hcl HCL (Hydrochloric acid) Hydrochloric acid HCL(HYDROCHLORIC ACID) |
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| 9922. |
X/2+2y/3=-7and x-4/3=3 |
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| 9923. |
α +β= |
| Answer» α+β=-b/a | |
| 9924. |
Use substitution method 8x+5y=9;3x+2y=4 |
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Answer» 8x+5y=9 (1)3x+2y=4 (2)By substitution methodX=9-5y/8 (3)Substitute equation 3 in 23x+2y=43(9-5y/8)+2y=427-15y/8+2y=427-15y+16y=4×827+y=32y=32-27y=5Place y=5 in equation 18x+5y=98x+5(5)=98x+25=98x=9-258x=-16x=-16/8x=-2 Y =5 X =2 Please like my answer |
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| 9925. |
Find the sum if two middle most terms if the AP-4/3,-1,-2/3,...13/3 |
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| 9926. |
The mean of the following distribution is 18. |
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| 9927. |
If A, B and C are interior angles of a triangle ABC, then the value of tan\xa0B+C/2 is |
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| 9928. |
check whether the following is quadratic equation (x+1)2 = 2(x+3) |
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Answer» Yes it is a quadratic equation (X +1)2 = 2(x +3)2x +2 = 2x + 62x - 2x = 6-2= 4Therefore ,it is not a quadratic equation |
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| 9929. |
x+4-3= |
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Answer» x + 4 - 3 = 0x + 1 = 0x = -1HOPE IT HELP\'S YA X + 4-3 = 0X + 1 = 0X = -1 x + 4 - 3 = 0x + 1 = 0 x = -1 X=-1 X=-1 |
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| 9930. |
Solve for X and Y 4 x + 6 Y is equal to 3 x y x + 9 Y equal to 5 x y |
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| 9931. |
Solve for X and Y X + Y is equal to 5 x y 3 X + 2 Y is equal to 13 x y |
| Answer» Kenzie AZ hid elk 464/-1=9/$(2 0 ) hzjahugsc she /71*!$"2=294=:: \'1"1"4\'8\'5:5,8/\'[email\xa0protected])()=55=\'5\'5"5\'55(658097!=\'6!!*) | |
| 9932. |
What is division algorithm? |
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Answer» If p(x) and g(x) are any two polynomials with g(x) ≠ 0, then we can find polynomials q(x) and r(x) such that p(x) = g(x) × q(x) + r(x).Dividend = Divisor × Quotient + Remainder Steps to divide PolynomialsArrange terms of dividend & divisor in decreasing order of their degreesUse Euclid formula to divide p(x)=g(x)*q(x)+r(x)Dividend=divisor*quotient+remainder |
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| 9933. |
Sum of the first twenty terms of an ap is -240 and its first term is 7. Find it\'s 24th term |
| Answer» Given : Sum of 20 terms of an AP =−240 and First term 7Sum of first n terms of an AP is given as S= 2n\u200b [2a+(n−1)d]n=20,S=−240,a=7⇒−240= 220\u200b [2×7+(20−1)d]⇒−240=10[14+19d]⇒−240=140+190d⇒−190d=140+240⇒−190d=380⇒d= −190380\u200b =−2n th term of an AP =a n\u200b =a+(n−1)d⇒a 24\u200b =7+(24−1)(−2)⇒a 24\u200b =7−46⇒a 24\u200b =−39 | |
| 9934. |
Use euelids division algorithm to find the hcf of.. |
| Answer» ?????\'? ??? ???????? ????? ??????? ?????? ???? ??? | |
| 9935. |
If Sn = 5n - n^2 Find A7 and A10 |
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| 9936. |
Using prime factorization find the HCF andLCM 36 84 |
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Answer» Hi Prime factorization:36 = 22\xa0× 3.84 = 22\xa0× 3 × 7.HCF = product of smallest power of each common prime factor in the numbers = 22\xa0× 3 = 12 .LCM = product of greatest power of each prime factor involved in the numbers = 22\xa0× 32\xa0× 7 = 252. |
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| 9937. |
the graph of a quadratic polynomial is a ____________ |
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Answer» Parabola Parabola Parabola Parabola parabola |
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| 9938. |
Polynomial ex. 2.2 |
| Answer» What is question about | |
| 9939. |
The third zero of the polynomial x³-8x²+19x-12 if it\'s one zero is x=1 are |
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| 9940. |
5root is irrational |
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Answer» Root 5 is an irrational number. Yes , it\'s true Yes √5 is irrational |
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| 9941. |
Nsheo |
| Answer» Please ask question with complete information. | |
| 9942. |
Find 2 consecutive positive integers ,sum of whose squares is 925. |
| Answer» let first integer be xthen its consecutive integer be (x+1)according to questionx^2 + (x+1)^2 = 9252x^2 + 2x - 924 = 0x^2 + x - 462 = 0x = -1 +- √1 + 4*462 / 2x = -1 +- 43/2x = -1 + 43 /2 = 21x = -1 - 43/2 = -22x = 21 , -22 | |
| 9943. |
Solve...0.2x + 0.3y =1.30.4x + 0.5y = 2.3 |
| Answer» AnswerLet 0.2x+0.3y=1.3 ....(1) 0.4x+0.5y=2.3 ....(2)Multiply eqn(1) by 10 we get2x+3y=13 ....(3)Multiply eqn(2) by 10 we get4x+5y=23 ....(4)Solving equations (3) and (4)5×(3)⇒10x+15y=653×(4)⇒12x+15y=69Subtracting we get 12x+15y−10x−15y=69−65=4or 2x=4 or x=2Substituting x=2 in eqn(3) we get2x+3y=13⇒2×2+3y=13 or 3y=13−4=9 or y=3Hence x=2,y=3 | |
| 9944. |
4052 and 12579 division algorithm |
| Answer» According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers q and r which satisfies the condition a = bq + r where 0 ≤ r ≤ b.HCF is the largest number which exactly divides two or more positive integers.Since 12576 > 405212576 = (4052 × 3) + 420420 is a reminder which is not equal to zero (420 ≠ 0).4052 = (420 × 9) + 272271 is a reminder which is not equal to zero (272 ≠ 0).Now consider the new divisor 272 and the new remainder 148.272 = (148 × 1) + 124Now consider the new divisor 148 and the new remainder 124.148 = (124 × 1) + 24Now consider the new divisor 124 and the new remainder 24.124 = (24 × 5) + 4Now consider the new divisor 24 and the new remainder 4.24 = (4 × 6) + 0Reminder = 0Divisor = 4HCF of 12576 and 4052 = 4. | |
| 9945. |
Last digit of 3^48 is |
| Answer» 1 | |
| 9946. |
1+i+i2+i3 |
| Answer» 1+3i+3i1+6i | |
| 9947. |
What is 3x-2y/34 |
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| 9948. |
If x= 2 is a root of the equation 3x2-2kx +5 = 0 , then find k |
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Answer» -2 is the root of the equation , so x=-2 Putting the value of x in equation3(-2)²- 5 (-2) +2k12 +10 +2k=02k+22 =02k= -22K= -11Hence the value of k is - 11. Given equation is 3x² -2kx +5 = 0and x=2So, 3(2)²-2k(2)+5=0 >3(4)-4k+5=0 >12-4k+5=0 >17-4k=0 >-4k=-17 >4k=17 >k=17/4 |
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| 9949. |
If the product of zeroes of the polynomial (ax) 2 -6x-6 is 4.Find the value of a. |
| Answer» ATQ, c/a=4=>-6/a=4=>4a=-6=>a=-6/4=-3/2 | |
| 9950. |
Explain why 3×5×7×11+11 is a composite number. |
| Answer» Answer:Composite numbers also known as composites in Mathematics are numbers that have more than 2 factors, not like prime numbers that have only one factor, i.e. 1 and the number itself.Composite numbers are all natural numbers that are not prime numbers since they can be divided by more than two numbers.6 is composite, for instance, since it is divisible by 1, 2, 3 and even 6.Now consider7 x 11 x 13 + 13We can also write this as⇒ (77 + 1) x 13⇒ 1014So the factors are⇒ 13 x 13 x 3 x 2It is a composite number. The given number has more than two factors.Now consider7 x 6 x 5 x 4 x 3 x 2 x 1 + 5We can also write it as⇒ 5(7 x 6 x 5 x 4 x 3 x 2 x 1 + 1)By calculation we get⇒ 1009 x 5It is a composite number. The given number has more than two factors.Hence proved. | |