JIPMAT - One cubic metre of iron weighs 7.800 kg. The weight of iron in a pipe of length 4 m, whose interior and exterior diameters measure 10 cm and 12 cm respectively, is nearly | PYQs + Solutions

JIPMAT

Geometry

Hard

108 kg

118 kg

78 kg

88 kg

✅ Correct Option: Drop

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JIPMAT 2024

If each side of a cube is decreased by $19 \%$ , then the decrease in surface area is :

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Consider the following statements, which of them is/are correct?

A. If the height of cylinder is doubled, the area of curved surface is doubled.

B. If the radius of a hemispherical solid is doubled, its total surface area becomes fourfold.

C. If a hemisphere and cone have equal bases and equal heights, then the ratio of curved surface area is $\sqrt{2}:1$ .

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The radii of two cones are in the ratio 2:3 and their volumes are in the ratio 1:3. Then the ratio of their heights is:

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