Electrical Engineering - Quantities and Units - Discussion

Discussion Forum : Quantities and Units - General Questions (Q.No. 1)
1.
When these numbers are multiplied, (6 × 103) (5 × 105), the result is
3 × 108
30 × 108
300 × 109
3,000 × 107
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
50 comments Page 2 of 5.

Santosh said:   1 decade ago
I agree with ashik solution. Thank you ashik.

Debashis said:   1 decade ago
Its very easy that-6*5=30;

In exponent 10^(5+3)=10^8

So the ans is 30*10^8

Ganesh said:   1 decade ago
(6 x 10^3)=6000
(5 x 10^5)=500000
6000 x 500000 = 3000000000
3000000000 = 30x10^8

Nandu said:   1 decade ago
When we are multiplying of these numbers the powers of those numbers are added.

Pavi said:   1 decade ago
(6x10^3)(5x10^5)
(6x5x10^3+5)
(30x10^8)
So ans is Option B

Siva(chotu) said:   1 decade ago
This is very small problem you have known the powers addition.
That is.
You first multiply the both 6&5 then added the powers.
Therefore.
(6*10^3) (5*10^5) = (6*5) (10^3+5) =30*10^8.
Then you get the answer.

Sumit kumar said:   1 decade ago
Add the power and then multiply the base term.

Guna said:   1 decade ago
Simple. In multiplication base increses.

MOHAMED SUBHAN said:   1 decade ago
6*5=30.

According to mathematical rule we have to add the powers so the powers 5+3=8 so the answer is 30x10^8.

Amala Joseph said:   1 decade ago
Given:
(6x10^3).
(5x10^5).

{(10^3)*(10^5)} = 10^3+5 = 10^8 => [(a^n)*(a^m)=a^n+m].

6*5=30.

Therefore Answer is 30*10^8.

So answer is Option B.


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