Work = force x distance. So a pulley that reduces  force will also increase distance -   but -   it can reduce the force needed to move something  â¦ thus making life easier.    Answer:   It depends on the number of pulleys and their arrangement. A single  pulley does not change the force required to lift something. But,  other pulley arrangements do. Four pulleys can be arranged into a  thing called a block & tackle that can divide the force  required to lift something by four. But, the rope must be extended  four times as long to do this.
Petrol price hiked by 75 paise; diesel by 50 paise. Petrol in Delhi currently costs Rs 71.51 per litre and after the increase it will be priced at Rs 72.43 per litre, including VAT. Petrol price cut by Rs 1.15 per litre; diesel hiked by 50 paise.
15 Oct, 2015 Petrol Prices in Pakistan-Saudi Arabia Cuts Oil Prices Amid OPEC Price War. Reductions follow price cuts by rivals last month. Saudi Arabia made deep reductions to the prices it charges for its oil, hard on the heels of cuts last month by rival producers in the Gulf.In a list of official prices sent to customers, state-oil company Saudi Aramco cut the price of its light-crude deliveries to Asia by $1.7 a barrel.he department dispatched a summary regarding petroleum productsâ prices to the PM. The summary recommends a price cut of at least Rs 6.15 in petrol prices from the start of September. Petrolâs current price is Rs 76.76 per litre.