ছয়টি ধারাবাহিক বিজোড় সংখ্যার গড়ের ছয়গুণ সবচেয়ে বড় সংখ্যাটির চারগুণ অপেক্ষা ১২ বেশি । ধারাবাহিক সংখ্যাগুলোর গড় কত?
Created: 4 years ago |
Updated: 2 months ago
best des
Quantity of milk in 729 litres of mixture
= 7 × (729/9)
= 567 litres,
Quantity of water = 729 - 567
= 162 litres
Let x litre of water be added to become ratio 7 : 3
Or, 7/3 = 567/(162 + x)
Or, 162 × 7 + 7x = 567 × 3 Or, 7x = 1701 - 1134 = 567
Or, x = 567/7
= 81 litres water is to be added.
= 7 × (729/9)
= 567 litres,
Quantity of water = 729 - 567
= 162 litres
Let x litre of water be added to become ratio 7 : 3
Or, 7/3 = 567/(162 + x)
Or, 162 × 7 + 7x = 567 × 3 Or, 7x = 1701 - 1134 = 567
Or, x = 567/7
= 81 litres water is to be added.
Md Azizur Rahman
Founder of Satt
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