# DWACRA woman wants to make candles out of a wax block of dimensions 60 cm

DWACRA woman wants to make candles out of a wax block of dimensions 60 cm,

35 cm, and 22 cms. The number of cylindrical candles that can be made with diameter

7 cms and height 4 cms is (Take ! = 22/7)

- 75
- 150
- 300
- 400

**Answer: (3) 300**

**Solution:-**

The dimensions of wax bock = 60 cm, 35 cm and 22 cm

Then, the volume wax block = 60 x 35 x 22

= 46200 cm^{3}

The diameter of candle = 7 cm

Then, the radius of candle = 7/2 = 3.5 cm

The height of cylindrical candle = 4 cm

So, the volume of a candle = 22 x (3.5)^{2} x 4/7

= 22 x 3.5 x .5 x 4

= 154 cm^{3}

Then, number of candles in a wax block = 46200/154

= 300

So, the number of cylindrical candles that can be made with diameter 7 cms and height 4 cms is 300.

Hence, the correct answer is option (3) 300.