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Salil wants to put a picture in a frame....

Salil wants to put a picture in a frame. The picture is `(7) 3/5 cm` wide. To fit the frame the picture cannot be more than `(7) 3/10 cm` wide. How much should the picture be trimmed ?

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AI Generated Solution

To solve the problem of how much Salil should trim from the picture to fit it into the frame, we will follow these steps: ### Step 1: Convert the mixed numbers to improper fractions. The width of the picture is given as \(7 \frac{3}{5}\) cm. To convert this to an improper fraction: - Multiply the whole number (7) by the denominator (5): \(7 \times 5 = 35\). - Add the numerator (3): \(35 + 3 = 38\). - So, \(7 \frac{3}{5} = \frac{38}{5}\) cm. ...
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Knowledge Check

  • In a cinema, a picture 2.5 cm wide on the film is projected to an image 3.0 m wide on a screen that is 18 m away. The focal length of the lens is about

    A
    7.5 cm
    B
    10 cm
    C
    12.5 cm
    D
    15 cm

  • Ram wants to show 15 pictures he took. He wants to put an equal number of pictures on 3 posters. Which number sentence shows how many pictures Ram should put on each poster?

    A
    `15-:3=5`
    B
    `15xx3=45`
    C
    `15+3=18`
    D
    `15-3=12`

  • If each frame of a motion picture film is 35 cm high, and 24 frames go by in a second, estimate how many frames are needed to show a two hour long movie.

    A
    1400
    B
    25 000
    C
    50 000
    D
    170 000

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