Logarithm - Quantitative Aptitude (MCQ) questions

Dear Readers, Welcome to Quantitative Aptitude Logarithm questions and answers with explanation. These Logarithm solved examples with shortcuts and tricks will help you learn and practice for your Placement Test and competitive exams like Bank PO, IBPS PO, SBI PO, RRB PO, RBI Assistant, LIC,SSC, MBA - MAT, XAT, CAT, NMAT, UPSC, NET etc.

After practicing these tricky Logarithm multiple choice questions, you will be exam ready to deal with any objective type questions.

1)   If logxy = 100 and log3x = 10, then the value of y is:
- Published on 07 Jul 17

a. 310
b. 3100
c. 31000
d. 310000
Answer  Explanation 

ANSWER: 31000

log3x = 10
Hence,x= 310
logx y = 100
y =x100 = (310)100= y = 31000