Page 155 - Maths Class 06

6. The cost of floor ing at ` 20 per square metre is ` 4,200. If the length of the room is 21 m, then its
breadth is:
(a) 5 m (b) 10 m (c) 15 m (d) 20 m
7. Mahi runs round a square field of side 75 m. Shalu runs round a rect an gu lar field with length 160
m and breadth 105 m. How much distance more is covered by Shalu than Mahi?
(a) 30 m (b) 160 m (c) 310 m (d) 230 m

8. While esti mat ing the area of an irreg u lar close figure, the contri bu tion of 5 squares (1 cm × 1 cm)
which are less than half-filled is:
5
2
2
(a) 10 cm (b) 5 cm 2 (c) cm (d) 0 cm 2
2

H O T S

1. How can you show that the area of square A is less then the area of square B with out measur ing
the sides?
[Hint : Use tracing paper]

B
A

2. How long will it take a boy to go around a regu lar penta gon of side 9 m at a speed of 7 m per
minute?
1
3. A farmer spent a day in plough ing of his field of 6 acres. How many days he would take to
6
finish ploughing 300 sq. m of the field?
4. Inside a rect an gu lar park of dimen sion 60 m by 40 m, a path 2 m wide is built in the middle, one
along the length and other along the breadth. What is the area of the remain ing part of the
park?

2 m

40 m 2 m

60 m

155