अपने छोटे भाई या बहन को पत्र लिखकर बताइए कि राजधम कहानी से आपको कया शिक्षा मिलता है ।
Answers
Answer:
There is no change ( i. e. 0 ) in the total price of fans P and Q put together.
Step-by-step-explanation:
Let the price of fan P be Rs x.
And the price of fan Q be Rs y.
From the first condition,
Price of fan P = 3 times price of fan Q
∴ x = 3 * y
⇒ x = 3y - - - ( 1 )
Total price of fan P and fan Q = Rs ( x + y )
⇒ Total original price = Rs ( 3y + y )
⇒ Total original price = Rs 4y
From the second condition,
Price of fan P is increased by 10 %.
∴ New price of fan P = x + 10 % * x
⇒ New price of fan P = x + 10 / 100 * x
⇒ New price of fan P = x + ( 1 / 10 ) * x
⇒ New price of fan P = x + ( x / 10 )
⇒ New price of fan P = ( 10x + x ) / 10
⇒ New price of fan P = 11x / 10
⇒ New price of fan P = ( 11 * 3y ) / 10 - - - [ From ( 1 ) ]
⇒ New price of fan P = Rs 33y / 10
Also,
Price of fan Q is decreased by 30 %.
∴ New price of fan Q = y - 30 % * y
⇒ New price of fan Q = y - 30 / 100 * y
⇒ New price of fan Q = y - ( 3 / 10 ) * y
⇒ New price of fan Q = y - ( 3y / 10 )
⇒ New price of fan Q = ( 10y - 3y ) / 10
⇒ New price of fan Q = Rs 7y / 10
Now,
New total price of fan P and fan Q = ( 33y / 10 ) + ( 7y / 10 )
⇒ New total price = ( 33y + 7y ) / 10
⇒ New total price = 40y / 10
⇒ New total price = Rs 4y
Now,
Change in total price = New total price - Original total price
⇒ Change in total price = Rs 4y - Rs 4y
⇒ Change in total price = Rs 0
∴ There is no change in the total price of fans P and Q put together.
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