Question

2/3 part of my sum is lent out at 3% per annum, 1/6 part is lent out at 6% per annum and the remaining part is lent out at 12% per annum. All three parts are lent out at simple interest. If the annual interest income is ₹25, what is the sum?​

Answer 1

Answer:

${\huge{\mathfrak{\pink{\fbox{\fbox{\red{Holla!!}}}}}}}$

Step-by-step explanation:

$\huge\mathfrak\red{A}$$\huge\mathfrak\pink{N}$$\huge\mathfrak\orange{S}$$\huge\mathfrak\blue{W}$$\huge\mathfrak\purple{E}$$\huge\mathfrak\green{R}$

Let entire sum = P

According to the question

23P×3%+16P×6%+[1−(23+16)]P×12%

=> 2P3×3100+P6×6100+[1−4+16]12P100=25

=> 2P100+P100+2P100=25

Answer 2

$\Large\tt{||\:GIVEN\:||}$

Neela saves in a Mahila Bachat Gat Rs.5 on the first day, Rs.7 on the second day, Rs.9 on the third day and so on.

$\Large\tt{||\:TO\:FIND\:||}$

Neela's saving in the month of August.

$\Large\tt{||\:SOLUTION\:||}$

✇ As per the given data we will get a sequence of the form 5, 7, 9, . . . which forms an arithmetic progession.

Here,

⦾ The first day saving is taken as, a = 5

⦾ Second day saving is taken as, a₁ = 7

⦾ The difference in saving is taken as d

$;\implies\:\tt{d\:=\:a_1\:-\:a}$

$;\implies\:\tt{d\:=\:7\:-\:5}$

$;\implies\:\bf{d\:=\:2}$

Here,

⦾ Here n is the number of days.

We know that,

⦾ There are 31 days in August.

Therefore,

n = 31

✇ So, to calculate the savings in the month of August we have to consider the following formula :

$\orange\star\:{\underline{\boxed{\bf{\purple{S_n\:=\:\dfrac{n}{2}\:\Big[2a\:+\:(n\:-\:1)\:d\Big]}}}}}\:\green\star$

$\hookrightarrow\:\tt{S_n\:=\:\dfrac{31}{2}\:\Big[2\times{5}\:+\:(31\:-\:1)\:2\Big]}$

$\hookrightarrow\:\tt{S_n\:=\:\dfrac{31}{2}\:\Big[10\:+\:30\times{2}\Big]}$

$\hookrightarrow\:\tt{S_n\:=\:\dfrac{31}{2}\:[10\:+\:60]}$

$\hookrightarrow\:\tt{S_n\:=\:\dfrac{31}{2}\times{70}}$

$\hookrightarrow\:\tt{S_n\:=\:31\times{35}}$

$\hookrightarrow\:\bf\pink{S_n\:=\:1085}$

$\Large\bf{Therefore,}$

The savings in the month of August is Rs.1085.

Answer:

$\dag{\boxed {\underline{\sf{\underline\orange{Hope \: it \: Helps \: u }}}}}\\\\\dag{\boxed {\underline{\sf{\underline\orange{Please \: mark \: as \: BRAINLIEST! }}}}}$

Explanation: