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4 years ago

What percentage of numbers from 1 to 70 has 1or 9 in their number digit

Mathematics

1 answer:

natta225 [31]4 years ago

7 0

Answer:

20%

Step-by-step explanation:

1,9,11,19,21,29,31,39,41,49,51,59,61,69 this is that series of numbers .These are total 14 numbers out of 70 so 14/70×100 gives us 20 % occurrence of 1 or 9 at unit place.

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Should be 1204.75? use this answer to check your work!

My work:
14 times 18 (since there’s two triangles) = 252
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4 years ago

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soldier1979 [14.2K]

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3 years ago

What’s the next three after? 18,36,72,144,..

IgorC [24]

Answer: 288, 576, 1152

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Hope this helped!! :)

6 0

3 years ago

Read 2 more answers

Out of seniors at a local high school, 60% went on the senior trip. At the hotel , one room was reserved for every 4 students .

sweet [91]

Answer:

Number of rooms reserved for the students are - 90 .

Step-by-step explanation:

Firstly ,

As we know 60% of the 600 students went on the trip,

Then ,

Number of students went on the trip = 60% of 600

= $\frac{60}{100}\times600$

= 360

Now ,

Given - One room is reserved for 4 students ,

Therefore , Number of rooms for 360 students = $\frac{360}{4}$

= 90

Hence , the answer is 90 rooms reserved for the students.

7 0

3 years ago

What percentage of numbers from 1 to 70 has 1or 9 in their number digit​

What percentage of numbers from 1 to 70 has 1or 9 in their number digit