12 bags of rice having equal weights weigh 174 kg. How much will 20 such bags weigh?

Weight of 12 bags = 174 kg.

Weight of 1 bag = $\Big(\dfrac{174}{12}\Big) \text{ kg} \quad \text{[Less bags, Less weight]}$

Weight of 20 bags = $\Big(\dfrac{174}{12} \times 20\Big) \text{ kg} \quad \text{[More bags, More weight]}$

= $\Big(\dfrac{174}{3} \times 5\Big)$ kg

= 58 x 5 kg $\quad$ (Dividing 174 and 3 by 3)

= 290 kg.

Hence, the weight of 20 bags is 290 kg.