Percentages

• Sep 8th 2009, 07:12 AM
guru
Percentages
1) 92.5% of 550=?

a)506.45 b)521.65 c)518.55 d)508.75

2)464/(16*2.32)=?

a)12.5 b)14.5 c)10.5 d)8.5

3) the owner of an electronics shop charges his customer 22% more than the cost price. if a customer paid RUPEES 1098 for a dvd player then what was the cost price of the dvd player?

a)8000 b)8800 c)9500 d)9200 e) none of these
• Sep 8th 2009, 09:19 PM
Amer
Quote:

Originally Posted by guru
1) 92.5% of 550=?

a)506.45 b)521.65 c)518.55 d)508.75

2)464/(16*2.32)=?

a)12.5 b)14.5 c)10.5 d)8.5

3) the owner of an electronics shop charges his customer 22% more than the cost price. if a customer paid RUPEES 1098 for a dvd player then what was the cost price of the dvd player?

a)8000 b)8800 c)9500 d)9200 e) none of these

just multiply the percentage with the number you have

$1)\left(\frac{92.5}{100}\right)(550)$ you calculate it

$3)\left(\frac{22}{100}\right)(1098)+1098$ you calculate it

$2)\frac{464}{16(2.32)}$ multiply the denominator and the numerator with 100

$\frac{464(100)}{16(100\times 2.32)}$

$\frac{46400}{16(232)}$ take factor 2 from 464

$\frac{2(23200)}{16(232)}$

$\frac{2(100)}{16}$ you can continue