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(a) Total no. of students=65000
No. of boys=8/25*65000
=20800
No. of girls=65000-20800
=44200
(c)A shopkeeper has 120 kg of rice
In 1st week he sold=20 1/3kg=61/3kg
In 2nd week he sold=10 1/5kg=51/5kg
In 3rd week he sold=15 1/2kg=31/2kg
In 4th week he sold=25 3/4kg=103/4kg
Total kg of rice he sold in these 4weeks=61/3+51/5+31/2+103/4
=1220+612+930+1545/60
=4307/60kg
Remaining rice=120-(4307/60)
=(7200-4307)/60
=2893/60
=48 13/60 kg
(d)Seema weighs=66 kg
Rahul weighs=2/3 of seema's weight=2/3*66=44 kg
Difference between their weights=66 kg - 44 kg = 22 kg
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