# 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