Question

hello...

plz plz answer...
openchallenge..
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Answer 1

Let his initial salary be 'x'.

Given that his salary is increased by 15%. his new salary is 9936.

⇒ x + 15% of x = 9936

⇒ x + (15/100) * x = 9936

⇒ (100x + 15x)/100 = 9936

⇒ 115x = 993600

⇒ x = 993600/115

⇒ x = 8640.

Therefore, his initial salary is 8640.

Hope it helps!

Answer 2

Hi there!
Here's the answer:

Given,
%Increase in salary= 15%
New salary = ₹9936

Let Initial salary = x
[Note that x= 100% of x]

New salary = Initial salary+ (Initial salary × %Increase in salary)
•°• New salary = Initial salary(1 + %change)

Substitute values
9936= x(1+15%)
(15%= 15/100= 3/20=0.15)
{3/2 = 1.5; 3/20= 0.15}

9936= (1+1.15)x
9936= 1.15x
x= (9936×100)/115= 993600/115= 8640

•°• Initial salary x= ₹8640

°•°•°•°•°<><><><><><>•°•°•°•°•

Verification:

100%-------8640₹
15%---------k ₹
k= (8640×15)/100= 129600/100= 1296₹
Adding this to initial salary should give new salary

8640₹ + 1296₹=> 9936₹
Given data matched.

:)
hope it helps