**If a box of 55 syringes costs $660.00, which of the following is the cost of four syringes?**

$51.00

$26.00

$32.00

$48.00

*Correct Answer : D*

: the question requires we find the cost of four syringes.

If we let x be the cost of four syringes, then we set up a proportion equation with cost as numerator and number of syringes as denominator. The proportion equation becomes

Cross-multiply to solve for x

Rearranging the above

Divide both sides of the equation by 55

Thus, the cost of 4 syringes is $48.

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