Conversion of Units

Q.

1. 324 cm²

2. 169 cm²

3. 1156 cm²

4. 2601 cm²

Q.

1. 42 cm

2. 84 cm

3. 64 cm

4. 68 cm

Q.

1. 4.5 cm

2. 7.5 cm

3. 9 cm

4. 15 cm

Q. 12^¼ × 3^¼ ÷ 3^½ is equal to

Q.

1. 6 cm

2. 7.2 cm

3. 7.5 cm

4. 8 cm

Q.

1. 7cm; 8.4cm

2. 4cm; 5.2cm

3. 7cm; 6.6cm

4. 4cm; 7.4cm

Q.

Add the decimals obtained as results in sums I and II.

Sum I: 2.906 + 16.728 + 2.1

Sum II: 1.569 – 5.77 – 0.023

1. 18.51

2. 17.51

3. 14.51

4. 19.51

Q. The dimensions of a rectangular box are in the ratio $1:2:4$ and the difference between the costs of covering it with the cloth and sheet at the rate of $Rs.20$ and $Rs.20.50$ per square metre, respectively is $Rs.126$. Find the dimensions of the box.

1. $4cm,7cm$ and $10cm$
2. $2cm,4cm$ and $11cm$
3. $3cm,6cm$ and $12cm$
4. $7cm,8cm$ and $13cm$

Q.

1. 12 cm

2. 10 cm

3. 18 cm

4. 8 cm

Q.

1. 7.5 cm

2. 22.5 cm

3. 15 cm

4. 30 cm

Q.

1. 28 cm, 88 cm

2. 34 cm, 60 cm

3. 28 cm, 68 cm

4. 30 cm, 60 cm

Q. A man is standing on the $8$m long shadow of a $6$m long pole. If the length of his shadow is $2.4$m, what is the height of the man?

1. $1.8$m
2. $1.6$m
3. $1.4$m
4. $2.0$m

Q. How many students have their height more than $135$ cm and less than $155$ cm ?

1. $56$
2. $66$
3. $76$
4. $86$

Q.

The painter charged ₹ 5 per $m^2$ to paint the wall, as shown in the figure. Calculate the area to be painted and the money to be paid to the painter,

if the dimensions of the door is $3m\times 2m$ and that of the wall is $8m\times 8m$.

1. $60m^2,₹300$

2. $64m^2,₹320$

3. $58m^2,₹290$

4. $55m^2,₹275$

Q.

1. 5 cm

2. 3 cm

3. 1.3 cm

4. 0.3 cm

Q. Explain what is 1m3 = 1000litres ??

Q. In what time will a sum of Rs. $800$ at $5$% p.a. CI amounts to Rs. $882$?

1. $1$ year
2. $5$ year
3. $2$ year
4. $4$ year

Q.

There is a circular park near Ram’s house. In this park, there are rectangular and circular paths of width 1.5 m. The rectangular paths pass through center of the park. The local community decided to put grass beds on the entire pathway. The inner radius of the circular path is 8 m. If the distance between any of the gates and the circular path is 2.5 m, find the cost of laying grass beds on the entire pathway at 0.1 paise per square cm.(Consider overlapping areas as squares)