CBSE Class 10 Mathematics Exam 2019: Important 1 mark questions with solutions

So as to ace a subject, on must have a lot of inquiries dependent on different theme and ideas talked about in that subject. Comprehending distinctive inquiries surveys your readiness and acquaint with the diverse manners by which an idea can be tried. This at last encourages you to be increasingly arranged and confidents for the tests.
Here, we are giving a lot of most imperative 1 mark inquiries to get ready for CBSE class 10 Mathematics board test 2019. Every one of these inquiries have been given point by point arrangements clarified by the subject specialists.
Understudies may download the entire inquiry bank for CBSE Class 10 Maths Exam 2019 and practice the equivalent while modifying the Maths prospectus. Comprehending different inquiries will likewise build your speed and precision.
Given beneath are some example inquiries from the arrangement of CBSE Class 10 Mathematics: Important 1 Mark Questions:
Q. On the off chance that the HCF of 65 and 117 is expressible as 65 m – 117, at that point discover the estimation of m.
Sol.
We have, 65 = 13 × 5
What's more, 117 = 13 × 9
Thus, HCF = 13
As indicated by inquiry 65m – 117 = 13
⇒ 65m = 13 + 117 = 130
⇒ m = 130/65 = 2
Q. On the off chance that the regular distinction of an A.P. is 3, at that point find a20 – a15.
Sol.
Give the main term of the AP a chance to be a.
a = a(n − 1)d
a20 – a15 = [a + (20 – 1)d] – [a + (15 – 1)d]
= 19d – 14d
= 5d
= 5 × 3
Q. Discover the estimation of a with the goal that the point (3, a) lies on hold spoken to by 2x – 3y = 5.
Sol.
Since purpose (3, a) lies on line 2x – 3y = 5.
At that point, 2 x 3 – 3 x a = 5
⟹ 6 – 5 = 3a
⟹ a = 1/3
Q. For what estimation of k will k + 9, 2 k ‒ 1 and 2k + 7 are the back to back terms of an A.P.?
Sol.
In the event that three terms x, y and z are in A.P. at that point, 2 y = x + z
Since k + nine, a pair of k ‒ one and a pair of k + seven square measure in an exceedingly.P.
∴ 2(2k − 1) = (k + 9) + (2k + 7)
⟹ 4k – 2 = 3k + 16
⟹ k = 18
Q. Locate the middle utilizing an exact connection, when it is given that mode and mean are 8 and 9 individually.
Sol.
The connection between Mean, Median and Mode of the given information is:
Mode = 3Median − 2Mean
⟹ 8 = 3Median − 2 × 9
⟹ 3Median = 8 + 18
⟹ Median = 26/3
⟹ Median = 8.67
In CBSE Class 10 Mathematics Board Exam 2019, Section - A will involve 6 inquiries of 1 mark each.
Understudies must practice the vital inquiries given here. This will assist them with tracking their readiness for the end of the year test and furthermore get a thought regarding the critical points of class 10 Maths to be set up for the test. In addition, the arrangements gave here will give understudies a thought regarding how to compose legitimate answer for each inquiry in the board test in order to score ideal imprints.

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• CBSE Class 10 Mathematics Exam 2019: Important 4 Marks Questions with Solution