1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nimfa-mama [501]
2 years ago
7

In how many year the interest will became equal to the principal is rs.1200 is deposited at the rate of 25% in a bank ​

Mathematics
1 answer:
mrs_skeptik [129]2 years ago
4 0

Given:

Principal = Rs. 1200

Rate of interest = 25%

To find:

The time in which the interest will became equal to the principal.

Solution:

We have,

P=1200

r=\dfrac{25}{100}

r=0.25

If interest is equal to the principal, then

Amount=Principal+Interest

Amount=1200+1200

Amount=2400

The formula for amount is:

A=P\left(1+r)^n

Substituting A=2400, P=1200, r=0.25 in the above formula, we get

2400=1200(1+0.25)^n

\dfrac{2400}{1200}=(1.25)^n

2=(1.25)^n

Taking log on both sides, we get

\log2=\log(1.25)^n

\log2=n\log(1.25)               [\because \log a^b=b\log a]

\dfrac{\log2}{\log(1.25)}=n

n\approx 3.11

Therefore, the interest will became equal to the principal in about 3.11 years.

You might be interested in
• Find -4-2 1/2<br> • Model the expression on the number line by drawing an arrow.
pshichka [43]

Answer:-6.5

Step-by-step explanation:

7 0
3 years ago
The value of x-y+xy if x=1 y=1 is
Artyom0805 [142]

Answer:

1

Step-by-step explanation:

x-y+xy=1-1+1*1=0+1=1

8 0
3 years ago
Read 2 more answers
Which number is a perfect cube? 5, 100, 125, 150​
KATRIN_1 [288]

Answer:

125

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A CD usually sells for $14.00. If the CD is 10% off, and sales tax is 6%, what is the total price of the CD, including tax?
Vikki [24]
10% of 14 =1.4
14-1.4=12.6
6% of 14=0.84
12.6+0.84= 13.45
7 0
3 years ago
I need the answer for 21
levacccp [35]

Answer:

h>13

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Which expression is equivilent to 9x-3y-5x+7y+x+y. a=5x2+ 4y2. b= 10xy. c= 5x+5y. d= 4x +4y
    14·2 answers
  • Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? Determine the solution set algebr
    11·2 answers
  • Rewrite f(x) = x2 + 12x + 26 in general form. Because both sides of the equals sign will be manipulated, replace the f(x) with t
    8·1 answer
  • For the transformation T, write the T-1. T: (x, y) ( 2x, y + 5) T -1 (x, y) (x - 2, y - 5) (2x - 1, y + 4) (½x, y - 5)
    13·1 answer
  • 15x - 12y =13<br> 30x +9y =4<br> whats the value of x
    8·2 answers
  • 7 3/8 - 4/7 Estimate
    15·1 answer
  • <img src="https://tex.z-dn.net/?f=343%5E%7Bx-3%7D%3D49%5E%7B2x-2%7D" id="TexFormula1" title="343^{x-3}=49^{2x-2}" alt="343^{x-3}
    13·1 answer
  • I need the answer ? how can I solve the problem ?
    6·1 answer
  • Which addition equation matches the number line
    10·1 answer
  • Write the following equation in standard form:`X^{2}+6X=-2`
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!