12 cows together eat 756 kg of grass in 7 days. How much grass will be

1.	12 cows together eat 756 kg of grass in 7 days. How much grass will be eaten by 15 cows in 10 days ? (a) 1500 kg (b) 1200 kg (c) 1350 kg (d) 1400 kg
Answer» (c) 1350 kg 12 cows in 7 days eat 756 kg of grass 12 cows in 1 day eat \(\frac{756}{7}\) kg of grass (Less days \(\Rightarrow\) Less grass ) 1 cow in 1 day eats \(\big(\frac{756}{12\times7}\big)\)kg of grass (More days \(\Rightarrow\) More grass) 15 cows in 10 days eat \(\big(\frac{756\times10\times15}{7\times12}\big)\)kg of grass = 1350 kg (More cows \(\Rightarrow\) More grass)

12 cows together eat 756 kg of grass in 7 days. How much grass will be eaten by 15 cows in 10 days ? (a) 1500 kg (b) 1200 kg (c) 1350 kg (d) 1400 kg

Answer»

(c) 1350 kg

12 cows in 7 days eat 756 kg of grass

12 cows in 1 day eat \(\frac{756}{7}\) kg of grass

(Less days \(\Rightarrow\) Less grass )

1 cow in 1 day eats \(\big(\frac{756}{12\times7}\big)\)kg of grass

(More days \(\Rightarrow\) More grass)

15 cows in 10 days eat \(\big(\frac{756\times10\times15}{7\times12}\big)\)kg of grass = 1350 kg

(More cows \(\Rightarrow\) More grass)