31
The price of the toy is first increased by 30% and then decreased by 20%. If the price of the toy is now Rs. 312 what was the original price of the toy?
- A350
- B250
- C300
- D400
Answer not set
Log in or create a free account to reply and vote.
0
CCommunity
Let the price of the toy be Rs. x. If it is increased by 30% the price becomes
$(\left( {\frac{{130}}{{100}}} \right)x = 1.3x)$
Price is decreased by 20% so the price now becomes,
$(\left( {\frac{{80}}{{100}}} \right)1.3x = 1.04x)$
So, we can write now,
1.04x = 312
⇒ x = 300
∴ The original price of the toy = Rs. 300.
$(\left( {\frac{{130}}{{100}}} \right)x = 1.3x)$
Price is decreased by 20% so the price now becomes,
$(\left( {\frac{{80}}{{100}}} \right)1.3x = 1.04x)$
So, we can write now,
1.04x = 312
⇒ x = 300
∴ The original price of the toy = Rs. 300.
0
CCommunity
Let the price of the toy be Rs. x. If it is increased by 30% the price becomes
$(\left( {\frac{{130}}{{100}}} \right)x = 1.3x)$
Price is decreased by 20% so the price now becomes,
$(\left( {\frac{{80}}{{100}}} \right)1.3x = 1.04x)$
So, we can write now,
1.04x = 312
⇒ x = 300
∴ The original price of the toy = Rs. 300.
$(\left( {\frac{{130}}{{100}}} \right)x = 1.3x)$
Price is decreased by 20% so the price now becomes,
$(\left( {\frac{{80}}{{100}}} \right)1.3x = 1.04x)$
So, we can write now,
1.04x = 312
⇒ x = 300
∴ The original price of the toy = Rs. 300.