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Verdich [7]
3 years ago
9

If 50% of 120% of 30% of a number is 108,what is the number

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
8 0

Answer:

600

Step-by-step explanation:

Of means multiply and is means equals

50% * 120% * 30% *N= 108

Change to decimal form

.50 * 1.20 * .30 * N = 108

Multiply

.18 N = 108

Divide each side by .18

.18N /.18 = 108/.18

N =600

miv72 [106K]3 years ago
5 0

Hello from MrBillDoesMath!

Answer:

The number is 600

Discussion:

Percent means "per 100" or divided by 100. The Question is equivalent to

50 % * 120% * 30% * x = 108

where x is the number to be found. This is equivalent to

(50/100)* (120/100) * (30/100) * x = 108   => simplify fractions

(1/2)       * (12/10)  *    ( 3/10) * x      = 108   =>  as 3 * 12 = 36

36/ (2 * 10* 10) * x  = 108                           =>  36 * 3 = 108. Divide by 36

1/(200) *x = 108/36 = 3                             => multiply both sides by 200

x = 3 * 200 = 600

Thank you,

MrB

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