A hall is 15 m long and 12 m broad. If th… | Answer

Subject

Quantitative Aptitude

Topic

Areas & Volumes

A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
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ক)

720

খ)

900

গ)

1200

ঘ)

1800

Explanation

[একটি ঘর 15 মিটার লম্বা এবং 12 মিটার চওড়া। মেঝে এবং সিলিং এর ক্ষেত্রফলের সমষ্টি চার দেয়ালের ক্ষেত্রফলের সমষ্টির সমান হলে ঘরের আয়তন হল-] ধরি হল ঘরের উচ্চতা = h দেওয়া আছে, ঘরের দৈর্ঘ্য ১৫ মি. ঘরের প্রস্থ ১২ মি. প্রশ্নমতে, ২ ( ১৫ × ১২ ) = ২ × ( ১৫ + ১২ ) × h বা, ২ × ২৭ × h = ২ ( ১৫ × ১২ ) বা, h × ২৭ = ১৫ × ১২ বা, h = (১৫ × ১২)/২৭ h = ২০/৩ আমরা জানি, আয়তন= (১৫ × ১২×২০)/৩ = ১২০০ ঘন মিটার

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A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:Reading

A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:

Explanation

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A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
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