SMS customer

In January, mobile phone owners sent 1,500,000 SMS, which accounted for 75% of all January SMS. How many SMS did customers send in January?

Final Answer:

n =  2000000

Step-by-step explanation:


1500000 = 0.75 n

1500000 = 0.75·n

0.75n = 1500000


n = 1500000/0.75 = 2000000

n = 2000000

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