Chapter lcm and hcf for all competitive exams theory

Professors Lambert and Stassen teamteach an advanced psychology class. Their students recently took their final exams, and the professors are preparing to grade them. Professor Stassen predicts that, if she graded all the exams, she would take 50% more time than Professor Lambert would if he graded all the exams. They estimate that it will take them 40 hours to grade all the exams if they grade together. Which of the following equations best represents the situation described?

The ratio of LCM and HCF of the least composite and the least prime numbers is (a) "1:2," (b) "2:1.," (c) "1:1.," (d) "1:3"

Can two numbers have 18 as their HCF and 146 as their LCM? Give reasons.

The LCM of two numbers is 1200. Which of the following cannot be their HCF? (a) 600 (b) 500 (c) 400 (d) 200

Cell theory is applicable to all except

Can two numbers have 15 as their H.C.F. and 110 as their L.C.M.? Give reason to justify your answer.

Can two numbers have 12 as their H.C.F. and 234 as their L.C.M? Give reason to justify your answer.

The presence of gill slits, in the mbryos of all vertebrates, supports the theory of

The presence of gill slits, in the embryos of all vertebrates, supports the theory of