info@avatto.com
+91-9920808017
46. The total age of Ravi and Ali is 10 yr more than the total age of Ali and John. John is how many years younger than Ravi?
10
20
Cannot be measured
None of the above
Your email address will not be published. Required fields are marked *
Report
Name
Email
Website
Save my name, email, and website in this browser for the next time I comment.
Comment
47. The cash-box of Ruby contains same number of coins of 50 paise and 1 rupee only. On drawing the one-third coins of 50 paise and one-fourth coins of 1 rupee, the balance of cash-box is 26 Rs. The number of coins initially in cash-box is
36
60
54
48
48. The set of all real numbers under the usual multiplication operation is not a group since
multiplication is not a binary operation
multiplication is not associative
identity element does not exist
zero has no inverse
49. If (G, .) is a group such that (ab)- 1 = a-1b-1, ∀ a, b ∈ G, then G is a/an
commutative semi group
abelian group
non-abelian group
None of these
50. If (G, .) is a group such that a2 = e, ∀a ∈ G, then G is
semi group
none of these
Login with Facebook
Login with Google
Forgot your password?
Lost your password? Please enter your email address. You will receive mail with link to set new password.
Back to login