## saifoo.khan 3 years ago Questions coming..

1. saifoo.khan

2. Raja99

awe some introduction waiting for it!

3. Rohangrr

7 th thats 1st one

4. FoolAroundMath

$$\tau(5)=2, \tau(7) = 2, \tau(12)=6,\tau(35)=4, \tau(6)=4, \tau(4)=3$$ So, for Q7. $$I, II$$ are correct. For Q8, $$\tau (\tau (\tau(12))) = \tau(\tau(6)) = \tau(4) = 3$$

5. saifoo.khan

@FoolAroundMath , can you please explain what you wrote?

6. Rohangrr

ques 8 thats 4

7. anonymoustwo44

its 3 at question 8....

8. saifoo.khan

@FoolAroundMath ??

9. wasiqss

saif bhai i told you is type k questions nahi aye gai

10. Raja99

first calculate the divisors for each of the no shown.... Divisors of 5: 1, 5 Divisors of 7: 1, 7 Divisors of 35: 1, 5, 7, 35 Divisors of 12: 1, 2, 3, 4, 6, 12 Divisors of 6: 1, 2, 3, 6

11. saifoo.khan

@wasiqss ; hehe. This is SAT 1.

12. Raja99

and then count the no of divisors for each one then the ans by @FoolAroundMath follows

13. wasiqss

ohhh saif sat giving?

14. saifoo.khan

@wasiqss ; Most probably.

15. wasiqss

cool~

16. mukushla

for $\large n=\prod_{k=1}^{m} p_{k}^{\alpha_{k}} \\ \tau(n)=(1+\alpha_{1})(1+\alpha_{2})...(1+\alpha_{m})$ for example $12=2^2*3^1 \\ \tau(12)=(2+1)(1+1)=6$

17. saifoo.khan

@mukushla ; Sorry i don't get it . :D

18. mukushla

no problem

19. saifoo.khan

@Raja99 , okay i get till the divisor thing.. what's next?

20. Raja99

is it a way to fing the divisors @mukushla

21. Raja99

then the value of the tau(5)=no of divisors of 5(Pl count it) and subsitute to chk the conditions.

22. Raja99

for tau(5)=2 and tau(7)=2 and tau(35)=4 like that

23. Raja99

and chk 2*2=4 then option is true...

24. saifoo.khan

Ah, nice., so; 1. 2 = 2 2. 2*2 = 4 3. 2+2 =/= 6 Perfect.

25. FoolAroundMath

I was typing the whole thing out when OS crashed again. I'll leave it to the others to do that then ;)

26. saifoo.khan

@FoolAroundMath , Oh. okay. No Problem. (:

27. saifoo.khan

@Raja99 : Moving on to Question 8?

28. Raja99

Divisors of 12: 1, 2, 3, 4, 6, 12 Divisors of 6: 1, 2, 3, 6 Divisors of 4: 1, 2, 4 ok then tau(12)=6 then tau(6)=4 then tau(4)=3 there fore ans is 3 option c

29. saifoo.khan

Perfect man! Thanks a ton. @Raja99

30. lgbasallote

@saifoo.khan what math is this?

31. saifoo.khan

@lgbasallote : SAT.

32. Raja99

sat?@saifoo.khan

33. lgbasallote

correct me if im wrong but isnt SAT..uhmm a test?

34. saifoo.khan
35. saifoo.khan

Scholastic Aptitude "Test" @lgbasallote

36. lgbasallote

ohh

37. Raja99

umm