A cafe offers two kinds of espresso: single-shot and double-shot. Yesterday, the cafe sold 120 espressos in all, 75% of which were single-shot.
How many double-shot espressos did the cafe sell?

Question

Quizplus · Accepted Answer

Since the cafe only sold two types of espresso and 75% of the total sold espressos (120) are single-shot, the number of double-shot espressos should be 100% - 75% = 25% of the total espressos.
Step 1: Use the percent formula to calculate the number of double-shot espressos.  The percent formula is below:
 11ec0fda_98dd_4db4_a67f_1b2707616173_NR0004_00 We know that the "whole" is 120, and 25% of the whole is the number of double-shot espressos. So, we are looking for the "part", and that is where we will put our x.
 11ec0fda_98dd_4db5_a67f_8785e93310f8_NR0004_00 Step 2: Cross multiply.
 11ec0fda_98dd_4db6_a67f_3d42d2bdad8a_NR0004_00 Step 3: Simplify the right side of the equation. 25 x 120 = 3000.
 11ec0fda_98dd_4db7_a67f_830a3c56b93b_NR0004_00 Step 4: Simplify by dividing both sides of the equation by 100.
 11ec0fda_98dd_4db8_a67f_93dc08d5b521_NR0004_00

A Cafe Offers Two Kinds of Espresso: Single-Shot and Double-Shot