Sunday, 18 November 2012

Exercise on NUMBERS





         7. The exchange rate between dollars and euros is $1 = €1.196.

         a How many euros can be bought for $75?
         b How many dollars can be bought for €85?

         8. Calculate the purchase tax for these purchases:

         a Six bottles of Chateau Le Plonque at $5.88 exclusive of 15% purchase tax.
         b 40 litres of petrol at 83.6 cents per litre inclusive of 15% purchase tax.

        9. Jack needs to borrow $7500 to help buy a new car. Calculate the interest charge for a loan over       four years from these lenders:

        a A finance company, which charges 8% simple interest.
        b A bank, which charges 7.2% compound interest.

       10. How many mm3 are there in a cube of external surface area 6 million km2?



Contributed by Jessica To   


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