Telangana SCERT Class 9 Math Solution Chapter 15 Proofs in Mathematics Exercise 15.2

Telangana SCERT Solution Class IX (9) Math Chapter 15 Proofs in Mathematics Exercise 15.2

1.)

(i) Based on the two statements we can conclude that  – Jeevan is mortal.

(ii) No, x could be from any other state of India other than Andhra Pradesh and Telangana.

(iii) Based on the two statements we can conclude that Guly has a red tongue

(iv) All smart people are not presidents. There are a lot of  smart people in different – fields or different line of work all of them need not be presidents.

2.)

Given,

3

3 U

8


“If a cord has consonant on one side. There is a odd number on the other side”.

Clearly, we have to check B & 8.

If B has an even number on the other sides or if 8 has consonant – on the other side then the rule is broken.

3.) From the given clues we can conclude that the answer is 35.

(a) Statement – a does not help because the number clearly has more than one digit.

(b) Statement – b doesn’t help because the only multiply 7

7 is 70, which is divided by 10.

(c) Statement – c help because it opts out lots of number that are not multiple of 7.

(d) Helps because being odd number a lot of number.

(e) Statement – e does not help because the multiple of 7 and 11 is 77 and both the digits are not equal.

(f) Statement – f does not help.

(g) Statement – g for the opts out some possibilities.

(h) Using statement h we can conclude that 35 is the answers so it obviously helps.

Therefore, only c, d, g & h can be used to get the number rest are not required.

Updated: October 5, 2021 — 4:30 pm

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