## S-9-30-The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median and mode of the data.

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median and mode of the data.

## S-9-29-In fig-5, a toy is in the form of a cone mounted on a hemisphere of common base of radius 7 cm. The total height of the toy is 31 cm. Find the total surface area of the toy. [π=22/7]

In fig-5, a toy is in the form of a cone mounted on a hemisphere of common base of radius 7 cm. The total height of the toy is 31 cm. Find the total surface area of the toy. [π=22/7]

## S-9-28-There are two poles either on each bank of a river, just opposite to each other. One pole is 60 metre high. From the top of this pole, the angles of depression of the top and the foot of the other pole are 30° and 45° respectively. Find the width of the river and t he height of the other pole. (√3=1.732)

There are two poles either on each bank of a river, just opposite to each other. One pole is 60 metre high. From the top of this pole, the angles of depression of the top and the foot of the other pole Read More …

## S-9-27-Find the area of the segment APB shown in fig-4, if radius of the circle is 14 cm, ∠ AOB=120° and AB=14√13 cm (use π =22/7)

Find the area of the segment APB shown in fig-4, if radius of the circle is 14 cm, ∠ AOB=120° and AB=14√13 cm (use π =22/7)

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