40 % of the balloons in a packet is equal to 20. How many balloons are

1.	40 % of the balloons in a packet is equal to 20. How many balloons are there in the packet? A) 8 B) 20 C) 40 D) 50
Answer» ANSWER: D) 50 Step-by-step EXPLANATION: LET the required NUMBER be Z according to the question, $40\% \: of \: z = 20 \\ = > \frac{40}{100} \times z \: = 20 \\ = > 0.40 \: \times z = 20 \\ = > z \: = \frac{20}{0.4} = 50$

40 % of the balloons in a packet is equal to 20. How many balloons are there in the packet? A) 8 B) 20 C) 40 D) 50

Answer»

D) 50

Step-by-step EXPLANATION:

LET the required NUMBER be Z

according to the question,

$40\% \: of \: z = 20 \\ = > \frac{40}{100} \times z \: = 20 \\ = > 0.40 \: \times z = 20 \\ = > z \: = \frac{20}{0.4} = 50$