Question 113

Solve the following

Madhulika thought of a number, doubled it and added 20 to it. On dividing the resulting number by 25, she gets 4. What is the number?

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Solution

Let the number be x.
According to the question,
$\frac{2 x + 20}{25} = 4 \Rightarrow 2 x + 20 = 25 \times 4 \Rightarrow 2 x + 20 = 100 \Rightarrow 2 x = 100 - 20 \Rightarrow 2 x = 80 \Rightarrow x = \frac{80}{2} ∴ x = 40$
Hence, the required number is 40.

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Question 113 Solve the following Madhulika thought of a number, doubled it and added 20 to it. On dividing the resulting number by 25, she gets 4. What is the number?

Let the number be x. According to the question, 2x+2025=4⇒2x+20=25×4⇒2x+20=100⇒2x=100−20⇒2x=80⇒x=802∴x=40 Hence, the required number is 40.

Question 113

Solve the following

Madhulika thought of a number, doubled it and added 20 to it. On dividing the resulting number by 25, she gets 4. What is the number?

Let the number be x.
According to the question,
$\frac{2 x + 20}{25} = 4 \Rightarrow 2 x + 20 = 25 \times 4 \Rightarrow 2 x + 20 = 100 \Rightarrow 2 x = 100 - 20 \Rightarrow 2 x = 80 \Rightarrow x = \frac{80}{2} ∴ x = 40$
Hence, the required number is 40.