questions of direct and inverse variation
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120 men had provisions for 200 days. After 5 days, 30 men died due to an epidemic. The remaining food will last for …………. .
(a) 146 1/4 days
(b) 150 days
(c) 2251/2 days
(d) 260 days
A garrison of 500 men had provisions for 24 days. However, a reinforcement of 300 men arrived. The food will now last for ……………. .
(a) 15 days
(b) 16 days
(c) 17 1/2 days
(d) 18 days
12 men, working 8 hours a day, complete a piece of work in 10 days. To complete the same work in 8 days, working 15 hours a day, the number of men required, is …………. .
(a) 4
(b) 5
(c) 6
(d) 8
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