18. Five marks exercise problems IX

1. Meena had enough money to send $8$ parcels each weighing $500$ grams through a courier service. What would be the weight of each parcel, if she has to send $40$ parcels for the same money?

 

Weight of the parcel $=$ grams

 

2. It takes $120$ minutes to weed a garden with $6$ gardeners. If the same work is to be done in $30$ minutes, how many more gardeners are needed?

 

Number of more gardeners needed $=$