Question

2% of (5% of Rs 1800) is​

Answer 1

Answer:

2 years

Step-by-step explanation:

Interest is compounded annually,

So amount, A=P(1+

100

r

)

t

Where,

P is Principal (or sum)

t is time (in years)

A is the amount, person will get after time t

r is rate of interest per annum

Here,

A=2178

P=1800

t=?

r=10%

Now apply the formula,

⇒A=P(1+

100

r

)

t

⇒2178=1800(1+

100

10

)

t

⇒

1800

2178

=(

100

110

)

t

⇒

100

121

=(

10

11

)

t

⇒(

10

11

)

2

=(

10

11

)

t

⇒t=2 years

Answer 2

Value = 1.8 rupees

GIVEN:- 2% of (5% of Rs 1800)

TO FIND:- Value

SOLUTION:-

• In mathematics, a percentage derived from Latin per centum, "by a hundred" is a number or ratio which is expressed as a fraction of 100.

According to the question

first we'll solve the bracket.

$2\% \: of \: (5\% \: of \: 1800) \\ = \frac{2}{100} \times ( \frac{5}{100} \times 1800) \\ = \frac{2}{100} \times 90 \\ = 1.8$

Hence, Value = 1.8 rupees

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