3i-Infotech
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Numerical Ability
Log and Antilog
log 625 base 25 -log 961 base 31 + log 841 base 29 is
Read Solution (Total 10)
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- Ans is 2-2+2=2
log 625 base25-log 961 base 31+ log 841 base 29
log 25^2 base 25+ log 31^2 base 31 + log 29^2 base 29.
So 2-2+2=2 - 10 years agoHelpfull: Yes(6) No(0)
- Ans:- 2
Solution:-
log y base b = x
b^x = y
log 625 base 25 = 2
log 961 base 31 = 2
log 841 base 29 = 2
log 625 base25-log 961 base 31+ log 841 base 29
So
=2-2+2
=2
- 10 years agoHelpfull: Yes(2) No(0)
- any one can tell me 3I-INFOTECH and QA-INFOTECH are same companies any one give me the placement paper of QA-INFOTECH
- 10 years agoHelpfull: Yes(0) No(1)
- 2 log25 base 25-2 log 31 base 31+2 log 29 base29
=2-2+2
=2 - 10 years agoHelpfull: Yes(0) No(0)
- 2 log25 base 25-2 log 31 base 31+2 log 29 base29
=2-2+2
=2
- 10 years agoHelpfull: Yes(0) No(0)
- log X base X=1
log (x^y)=y log X
=>25-31+29=23 - 9 years agoHelpfull: Yes(0) No(0)
- 2
log 625 base 25 = 2
log 961 base 31 = 2
log 841 base 29 = 2
- 9 years agoHelpfull: Yes(0) No(0)
- let log 625 base 25=x
x=2;
log 961 base 31=y
y=2;
log 841 base 29=z
z=2;
x-y+z=2;
- 9 years agoHelpfull: Yes(0) No(0)
- here we know that log a base a=1
so log 25^2 base 25 -log 31^2 + log 29^2
2log 25 base 25 -2 log 31 base 31 + 2 log 29 base 29
2-2+2=2 answer - 8 years agoHelpfull: Yes(0) No(0)
- 2-2+2=2 is answer.
- 5 years agoHelpfull: Yes(0) No(0)
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