5. What is 15% of 34?
a) 5.10 b) 4.10
c) 3.10
d) 2.10
Answers
Answer:
Option (A)
Step-by-step explanation:
Hope you like it
Answer:
Let you know first what is percentage ...
Percentage means Number or ratio as a fraction of 100
For example 15% this means 15/100
So for calculating 15% of 34 , let take 34 for 100 fraction ,here we have to calculate the 15 fraction of it .
If we divide 34 into 100 fraction each fraction has a value of 34/100
And for 15 fraction the value will be (34/100)* 15
So the value is 5.10
15 % of 34
to solve it quickly one funnda is there: Let me explain consider 100%=1
100%=1
so
50%=1/2
25%=1/4
20%=1/5
10%=1/10 According to that here 15% of 34 10% 0f 34 +5% of 34
10% 0f 34 = 34/10=3.4
5%=10%/2 => 3.4/2=1.7
so 15% of 3 .4+1.7=5.1
This is the easy way with out a lot of calculation.
Other wise you can calculate in conventional method 15% of 34=(15/100)*34
Which requires some calculation .Hope you like the easy method
Hello sir/mam
1. 15% of 34 means 0.15th part of 34
2. By following these steps you can overcome
3. cent means 100 here 15% means we have to divide 15 into 100 equal parts
4. Thus each single part has a value 0f 0.15
5. Multiply the value (0.15) to 34
U can get the answer
15%=15/100=0.15
15% of 34=0.15*34=5.1
I am not getting why people are extending their answer instead of explaining it in a simple language.
15% of 34
Its quite simple, multiply 15 by 34 and then divide the whole by 100
Like, =>{(15×34)/100}
=> (510/100) = 5.1
But, there is one more way to calculate, we can also read it like 34% of 15, you will get the same answer.
Try it, but it will work only in case of multiplying with some percentiles.
The easy way of finding % of various numbers is dividing the % into easily multiplied numbers for example 15% into 10% + 5 %. So, the asked question can solved in the similar way as follows :-
15% of 34 can be solved as follows :-
15% can be written as 10% + 5%
10% of 34 = 34/10 = 3.4
5% of 34 = 3.4/2 = 1.7
Therefore, 15% of 34 = 10% of 34 + 5% of 34 = 3.4 + 1.7 = 5.1
15% of 34 = 5.1
There are two components to this answer.
First is (15 multiplied by 34). The other is % (which is out of 100).
As far as the first component is concerned, the fastest way by which a number can be multiplied with 15 is take half of the number and add it to the number.
Here, for instance half of 34 is 17. Add these two numbers to get 51 and then suffix 0. Say 15 *4444. Take half of 4444 (which is 2222). Add the two numbers and you will get 6666 (and then suffix 0).
So, 15*4444 =66660.
As far as the second component is concerned, just divide the number by 100 (per cent = out of 100 = divided by 100) to get the answer.
Just think and solve it simply like
(15*34)/100
=510/100
=5.1
For more clear calculate like the following way.
100 --------------- 15
1 ------------------- 15/100
34 ----------------- 15*34/100
= 5.10 (Ans.)
See it goes like this,
34*15/100 = 5.1 is the Ans.
The method is x% of y is - x*y/100, and for y% of x again it will be - x*y/100;
or if you can calculate then find 10% of the given no - like 10% of 34 is 3.4 then find 5% i.e 1.7 and add these two, answer would be 5.1, (If you want to do it without writing)
Thanks
It is 5.1 from (15*34)/100.
But a interesting way to calculate this would be to write 15*34 = 15*17*2
and then (16-1)*(16+1)*2 = (256-1)*2 = 510, using (a-b)*(a+b) = a^2 - b^2
The other way would be 15% = 10% + 5%
and 10% of n = n/10, 5% would be half of it.