Page 106 - Math Skill - 4

104 Maths

Example 4: 2 m 35 cm of cloth is required for making 1 shirt. How much cloth is needed to
make 6 such shirts?

Solution: Length of the cloth required for 1 shirt m cm
= 2 m 35 cm 2 3

Length of cloth required for making 6 shirts × 2 3 5
6
= 2 m 35 cm × 6 = 14 m 10 cm 1 4 1 0
Thus, the cloth needed to make 6 shirts is 14 m 10 cm.

Example 5: Madhu has a 57 m long string. She cuts it in 4 equal pieces. What is the length of
each piece? 1 4 2 5
Solution: Length of the string = 57 m = 57 × 100 cm 4 5 7 0 0

= 5700 cm –4
Number of equal pieces to be made = 4 1 7
Length of each piece = (5700 cm ÷ 4) –1 6 0
1
= 1425 cm – 8
= 14 m 25 cm 2 0

Thus, length of each piece of string = 14 m 25 cm –2 0
0

Exercise 7.7

1. Vipin bought 15 L 800 mL of milk. Out of this, he gave 7 L 550 mL of milk to
Rajiv. Find out how much milk is left with Vipin now?

2. A family consumed 30 kg 300 g of wheat in April. In May, it consumed 850 g
of wheat more than the wheat consumed in April. Find the total consumption
of wheat in these two months?

3. A water tank has 1000 L of water. If 387 L 50 mL of water was used, find the
quantity of water left in the tank.

4. Out of a tin of 18 kg of refined oil, 7 kg 50 g has been consumed. How much
oil is left now in the tin?

5. Weight of a table is 3 kg 350 g. What is the weight of 7 such tables.

6. 1 L 325 mL of oil is contained in a bottle. How much oil is contained in 5
such bottles.

7. Ritika bought 75 m 50 cm string and cut it into 5 equal pieces. What is the
length of each piece?

8. 5 kg 250 g of pulses are packed equally in 6 bags. What is the weight of each
bag?