Question
When a number is multiplied with 25 it gives 78125. Find the number and express it as a power of 5. What is the product if the number is multiplied by (−5)×(5)? [3 MARKS]
Answer:
:
Concept: 1 Mark
Application: 1 Mark
Answer: 1 Mark
Let the number be x.
Given that,
(x)×(25)=78125
x=3125
⇒ The required number is 3125
Now,
3125=5×5×5×5×5
⇒3125=55
Now, if the number was multiplied by (−5)×(5) then the product=(−5)×(5)×3125 = −78125
Was this answer helpful ?
:
Concept: 1 Mark
Application: 1 Mark
Answer: 1 Mark
Let the number be x.
Given that,
(x)×(25)=78125
x=3125
⇒ The required number is 3125
Now,
3125=5×5×5×5×5
⇒3125=55
Now, if the number was multiplied by (−5)×(5) then the product=(−5)×(5)×3125 = −78125
Was this answer helpful ?
More Questions on This Topic :
Question 1. Simplify: 84×143×5×3445×73×62 [3 MARKS]....
Question 2. Simplify: [2 MARKS]
25×3×42×5 ....
Latest Videos
Latest Test Papers
Submit Solution