CBSE Class 10 Maths Answer Key 2021-22 – Now that the exam is over, students can check CBSE Class 10 Maths Question Paper 2021-22 with Answers here. It is released by the subject experts in the form of video solutions and pdf format as well online. Students can use the CBSE Class 10 answer key as released to cross-check their answers and calculate their marks in the exam.
Ques. HCF of 92 and 152 is
Ans. 4
Ques. In triangle ABC, DE parallel to BC,AD+ 4cm, DB + 6 cm, and AE + 5cm. The length of EC is
Ans- 7.5 cm
Ques. The value of k, for which the pair of linear equations x + y – 4+ 0, 2x = ky – 3+ 0 have no solution is?
Ans- 2
Ques. The value of (tan2 45* _cos2 60*) is?
Ans- 3/4
Ques. A point (x,1) is equivalent from (0,0) and (2,0), The value of x is?
Ans- 1
Ques- Two coins are tossed together, the probability of getting exactly one head is?
Ans- 1/2
Ques- A circular arc of length 22 cm subtends an angle 0 at the center of the circle of radius 21 cm. The value of 0 is?
Ans- 60 degrees
Ques- A quadratic polynomial having sum and product of its zeroes as 5 and 0 respectively, is?
Ans- x2 + 5x
Ques- If P(E) = 0.65, then the value of P(not E) is?
Ans- 0.35
Ques- It is given that triangle DEF ~ triangle PQR, EF:QR = 3:2, then the value of ar(DEF):ar(PQR) is?
Ans- 9:4
Ques- Zeroes of a quadratic polynomial x2 – 5x+6 are?
Ans- 2,3
Ques- 57/300 is a?
Ans- terminating decimal expansion after 2 places of decimals
Ques- Perimeter of a rectangle whose length (l) is 4 cm more than twice its breadth (b) is 14 cm. The pair of linear equations representing the above information is?
Ans- l-b+4, 2(l+b) =`14
Ques- 5.213 can also bne written as?
Ans- 5.213213213…
Ques- The ratio in which the point ( 4,0) divides the line segment joining the points (4,6) and (4,-8) is
Ques- Which of the following is not defined?
Ans- tan 90 degree
Ques- In the given figure, a circle is touching a semi-circle at C and its diameter AB at O. If AB= 28 cm, what is the radius of the inner circle ?
Ans- 7cm
Ques- The vertices of a triangle QAB are o (0,0), A(4,0), and B (0,6). The median AD is drawn on OB. The length AD is?
Ques- In a right angle triangle QPR, angle Q =90*, If angle P = 45*, then the value of tan P- cos2 R is?
Ans- 1/2
Ques- If tan 0=⅔, then the value of sec 0 is
Ans- 13/3
Ques- The perimeter of the sector of a circle of radius 14cm and central angle 45* is
Ans- 11cm
Ques- A bad contains 16 red balls, 8 green balls and 6 blue balls, One ball is drawn at random. The probability that it is a blue ball is
Ans- ⅕
Ques- If sin θ- cos θ = 0, then the value of 0 is
Ans- 45o
Ques- The probability of happening of an event is 0.02. The probability of not happening of the event is
Ans- 0.98
Ques- Two concentric circles are centered at O. The area of the shaded region, if outer and inner radii are 14 cm and 7 cm respectively is
Ans- 462 cm
Ques- 1/1 + sinθ + 1/1-sinθ can be simplified to get
Ans- 2 secθ
Ques- The origin divides the line segment AB joining the points A (1, -3) and B(-3,9) in the ratio
Ans- 1:1
Ques- The perpendicular line bisector of a line segment A(-8,0) and B(8,0) passes through a point (0,k). The value of k is
Ques- Which of the following is the correct statement?
Ans- Two congruent figures are always similar
Ques- The solution of the pair of linear equations x= -5 and y = 6 is
Ans- (-5,6)
Ques- A circle of radius 3 units is centered at (0,0). Which of the following points lie outside the circle?
Ans- (3,1)
Ques- The value of k for which the pair of linear equations 3x + 5y = 8 and kx + 15y = 24 has infinitely many solution is?
Ans- 9
Ques- HCF of two consecutive even number is
Ans- 2
Ques. The zeroes of quadratic polynomial x2+99x+127 are
Ques- The mid point of line segment joining the ponts (-3,9) and (-6,-4) is
Ans- (-9/2, 5/2)
Ques- The decimal expansion of 13/2*52 * 7 is
Ans- non-terminating and non-repeating
Contents
FAQs
It is released unofficially by various subject teachers and educational institutes.
A direct link to download the CBSE 10th answer key 2021-22 can be accessed from the link above.
The minimum passing percentage for the board exam is 35%.
Yes, the CBSE Board has started conducting the CBSE Class 10th, 12th Term 1 exam.