If a b=5 and 3a 2b=20,then (3a b)will be : | Examsbook

Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

If a b=5 and 3a 2b=20,then (3a b)will be :

0

Ashu administrators Reply Quote

Answer : 3 25 Explanation : Answer: C) 25 Explanation: a b=5 ...(1) and 3a 2b=20 ...(2) Multiplying (1) by 2 and subtracting from (2), we get : a=10. Putting a=10 in (1), we get : b=-5 Therefore, (3a b) = 3 x 10 (-5)=30-5=25.

Click here to see the full blog post

Loading More Posts
1
Posts
303
Views

1 / 1