Question

If the cost of 98 m of a certain kind of plastic sheet is Rs 1470, then what would it cost to buy 105 m of such plastic sheet?​

Answer 1

Answer:

kind of plastic sheet is Rs 1395, then what would it cost to buy 105 m of such plastic sheet?

MEDIUM

ANSWER

Let the cost of the plastic sheet per meter be Rs.x

Length of plastic sheet ( in meter )93 105 Cost ( in Rs )1395 x If more sheets are bought, the cost will also be more.

∴  It is a direct variation.

We get:

93:105=1395:x

⇒  10593=x1395

Applying cross multiplication, we get:

x=93105×1395

⇒  x=1575

∴  The required cost will be Rs.1,575.

Answer 2

Answer:

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93/1395 = 105/x

By cross-multiplying

93x = 105(1395)

93x = 146475

x = 146475/93

= 1575

∴ The cost of 105m plastic sheet is Rs 1575

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