Question

wonderland has 350 lakes. the main source of water for these lakes is rain. During the summer of 2008, 1/10 th of the lakes dried up completely. How many lakes dried up?

Answer 1

the answer is quiet obvious 
it is
350/10 =35

Answer 2

No of lakes = 350
Since 1/10 lakes have dried up,
No of lakes dried up = 1/10 of 350
1/10 × 350 = 35 lakes