75
70. There is sufficient food for 4000 soldiers for 40 days and
each soldier eats 1250 grams food daily after 22 days 1600
soldiers left the camp and some soldiers joined the camp
where each new soldier eats 1000 gram daily. Now the
whole food fasted for 37 days then find the number of
soldiers who joined the camp.
4000 सैनिकों के लिए 40 दिनों के लिए पर्याप्त भोजन है और
प्रत्येक सैनिक 1250 ग्राम खाना खाता है । 22 दिनों के बाद
1600 सैनिक शिविर से बाहर निकल गए और कुछ सैनिक
शिविर में शामिल हो गये। जहां प्रत्येक नया सैनिक प्रतिदिन
1000 ग्राम खाता है। अब पूरा भोजन 37 दिनों तक चला, फिर
शिविर में शामिल होने वाले सैनिकों की संख्या ज्ञात कीजिए।
(a) 2500 (b) 3000 (c) 4000 (d) 2750
71. A contractor undertook to finish a road in 60 days and he
Answers
Given : There is sufficient food for 4000 soldiers for 40 days and each soldier eats 1250 grams food daily. After 22 days 1600 soldiers left the camp and some soldiers joined the camp where each new soldier eats 1000 gram daily. Now the whole food lasted for total 37 days
To Find : number of soldiers who joined the camp.
Solution:
each soldier eats = 1250 g = 1.25 kg
Soldiers = 4000
Days = 40
Total Food available = 4000 * 1.25 * 40 = 200000 kg
Food consumed in 16 days = 4000 * 1.25 * 22 =110000 kg
Food remained = 200000 - 110000 = 90000 kg
1600 soldiers left the camp
Hence remained soldier = 4000 - 1600 = 2400
New joined = N
New eat = 1000 gm 1 kg
food lasted for 37 days ,
More days left = 37 - 22 = 15
2400 * 1.25 * 15 + N * 1 * 15 = 90000
=> 45000 + 15N = 90000
=> 15N = 45000
=> N = 3000
number of soldiers who joined the camp = 3000
option b is correct
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