Decimals-Solutions Ex-8.6

CBSE Class –VI Mathematics
NCERT Solutions
Chapter 8 Decimals (Ex. 8.6)

Question 1.Subtract:

(a) 18.25 from 20.75

(b) 202.54 m from 250 m

(d) 2.051 km from 5.206 km

(e) 0.314 kg from 2.107 kg

Answer: (a) Rs. 2.50

(b) 47.46 m

(d) 3.155 km

(e) 1.793 kg

Question 2.Find the value of:

(a) 9.756 – 6.28

(b) 21.05 – 15.27

(d) 11.6 – 9.847

Answer: (a) 3.476

(b) 5.78

(d) 1.753

Question 3. Raju bought a book of Rs. 35.65. He gave Rs. 50 to the shopkeeper. How much money did he get back from the shopkeeper?

Answer: Total amount given to the shopkeeper = Rs. 50

Cost of book = Rs. 35.65

Amount left = Rs. 50.00 = Rs. 35.65 = Rs. 14.35

Therefore, Raju got back Rs. 14.35 from the shopkeeper.

Question 4. Rani had Rs. 18.50. She bought one ice-cream for Rs. 11.75. How much money does she have now?

Answer: Total money = Rs. 18.50

Cost of Ice-cream = Rs. 11.75

Amount left = Rs. 18.50 – Rs. 11.75 = Rs. 6.75

Therefore, Rani has Rs. 6.75 now.

Question 5. Tina had 20 m 5 cm long cloth. She cuts 4 m 50 cm length of cloth from this for making a curtain. How much cloth is left with her?

Answer: Total length of the cloth = 20 m 5 cm = 20.05 m

Length of the cloth used = 4 m 50 cm = 4.50 m

Remaining cloth = 20.05 m – 4.50 m = 15.55 m

Thereofre, 15.55 m of cloth is left with Tina.

Question 6.Namita travels 20 km 50 m every day. Out of this she travels 10 km 200 m by bus and the rest by auto. How much distance does she travel by auto?

Answer: Total distance to travel everyday = 20 km 50 m = 20.050 km

Distance travelled by bus = 10 km 200 m = 10.200 km

Distance travelled by auto = 20.050 km – 10.200 km = 9.850 km

Therefore, 9.850 km distance is travelled by auto everyday.

Question 7. Aakash bought vegetables weighing 10 kg. Out of this 3 kg 500 g in onions, 2 kg 75 g is tomatoes and the rest is potatoes. What is the weight of the potatoes?

Answer: Weight of onions = 3 kg 500 g = 3.500 kg

Weight of tomatoes = 2 kg 75 g = 2.075 kg

Total weight of onions and tomatoes = 3.500 kg + 2.075 kg = 5.575 kg

Therefore, weight of potatoes = 10.000 kg – 5.575 kg= 4.425 kg

Thus, weight of potatoes is 4.425 kg.