In 12 pumps can raise 1218 tons of water in 11 days of 9 hrs each, how many pumps will raise 2030 tons of water in 12 days of 11 hrs each?
Choose the correct option
A) 12	B) 15	C) 18	D) 21	E) 22
Explanation:   pumps work time   12 1218 99   x 2030 132   =&gt; 1218/(912*99) = 2020/(x × 132)   =&gt; x = 15 pumps   Answer: Option 15
<result>B</result>
In 12 pumps can raise 1218 tons of water in 11 days of 9 hrs each, how many pumps will raise 2030 tons of water in 12 days of 11 hrs each?