Question

49. In how many years will * 15000 be doubled at the rate of 12.5p.c.p.a.?
(1) 6 years
(3) 8 years
(2) 7 years
(4) 12 years​

Answer 1

Answer :-

Given :-

• Principal = Rs. 15000
• Amount = 2 × Principal
• Rate of interest = 12.5% p.a.

To Find :-

• Time

Solution :-

Amount = 2 × Principal

= 2 × 15000

= 30000

Amount = Rs. 30000

Simple interest = Amount - Principal

= 30000 - 15000

= 15000

Now, we have -

• SI = Rs. 15000
• P = Rs. 15000
• R = 12.5% p.a.

Substituting the values in formula -

→ SI = P × R × T / 100

→ 15000 = 15000 × 12.5 × T / 100

→ 1 = 12.5 × T / 100

→ 100 = 12.5 T

→ T = 100 / 12.5

→ T = 8

Time = 8 years

Answer 2

QuestioN :

In how many years will * 15000 be doubled at the rate of 12.5p.c.p.a.?

(1) 6 years

(3) 8 years

(2) 7 years

(4) 12 years​

GiveN :

• Principal = Rs. 15000

• Amount = 2 × Principal

• Rate of interest = 12.5% p.a.

To FiNd :

• How many years?

ANswer :

They take's total 8 years.

SolutioN :

$\sf Amount = 2 \:x\: Principal$

$\sf = 2 \:x\: 15000$

$\sf = 30000$

$\sf Simple \:interest = Amount - Principal$

$\sf = 30000 - 15000$

$\sf = 15000$

$\sf Now, \:Substituting \:the\: values$

$\rightarrow \sf SI =\frac{P\:x\: R\:x\: T }{100}$

$\sf \rightarrow 15000 =\frac{15000\:x\:12.5 \:x\: T}{100}$

$\rightarrow\sf 1 =\frac{12.5\:x\: T}{100}$

$\rightarrow \sf 100 = 12.5 \:T$

$\rightarrow \sf T =\frac{100}{12.5}$

$\rightarrow \sf T = 8$

∴Hence, They take's total 8 years.

________________________________

If you are not able to see the answer properly kindly view the answer from website by the given link.↓↓

brainly.in/question/37599861