Subject
Quantitative Aptitude
Topic
Areas & Volumes
The length of a cold storage is double its breadth. Its height is 3 metres. The area of its four walls (including the doors) is 108 m2.Find its volume.
The length of a cold storage is double its breadth. Its height is 3 metres. The area of its four walls (including the doors) is 108 m2.Find its volume.
ক)
215m3খ)
216m3গ)
217m3ঘ)
218m3Explanation
(প্রশ্ন-কোনো হিমাগারের দৈর্ঘ্য প্রস্থের দ্বিগুণ ও উচ্চতা ৩ মিটার।দরজাসহ এর চার দেওয়ালের নোট ক্ষেত্রফল ১০৮ বর্গ মিটার।হিমাগারের আয়তন কত? ধরি প্রস্থ x;দৈর্ঘ্য=২x চার দেয়ালের ক্ষেত্রফল =২ × উচ্চতা×(দৈর্ঘ্য+প্রস্থ) = ২×৩×(২x+x)=১৮ x প্রশ্নমতে,১৮x=১০৮ ∴ x=৬ অতএব আয়তন =২x × x × ৩ =২× ৬× ৬× ৩=২১৬ ঘনমিটার ।Related questions
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