dsnumbers

[nuthan]

Set A contains 20 numbers and set B contains 30 numbers. Is the range of B less than 45?
1) The range of set A is 10
2) Combining A and B, the range of the new set is 10

no Official Answer

[adcambridge]

I think ans is B, By combing set A and B the range is 10, so range of set b should be less than or equal to 10, which is less than 45.

[rd_eastbay]

(1) Insuff.
(2) Range of combined set is less than 10. So range of both sets is 10 at max. Suff.

B.

[jax510]

Agreed.