What will be the cost of painting a rectangular wall? I. The cost of painting is ₹10 per square metre. II. The perimeter of the wall is 60 m.

I alone sufficient
II alone sufficient
Both not sufficient
Either sufficient

Correct answer: Both not sufficient

Solution

Statement I gives the rate per square metre, but not the wall’s area. Statement II gives only the perimeter, which is not enough to determine area for a rectangle. Therefore, both statements together are still insufficient.

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