Question 1

Question 1: If, 317 × 45 = 14265, then 3.17 × 4.5 = ?

Accepted Answer

3.17 × 4.5 = 14.265

Question 2

Question 2: If, 503 × 217 = 109151, then 5.03 × 2.17 = ?

Accepted Answer

5.03 x 2.17 = 10.9151

Question 3

Question 3: i. 2.7 × 1.4 ii. 6.17 × 3.9 iii. 0.57 × 2 iv. 5.04 × 0.7

Accepted Answer

i. 2.7 × 1.4 = 3.75

Question 4

Question 4: Virendra bought 18 bags of rice, each bag weighing 5.250 kg. How much rice did he buy altogether? If the rice costs Rs 42 per kg, how much did he pay for it?

Accepted Answer

Weight of one bag of rice = 5.250 kg Number of bags of rice = 18 ∴ Total Weight = 18 × 5.250 Cost of 1 kg of rice = Rs 42 ∴ Cost of 94.5 kg of rice = 42 × 94.5 ∴ Total rice bought by Virendra is 94.5 kg, and the amount paid for it is Rs 3969.

Question 5

Question 5: Vedika has 23.5 metres of cloth. She used it to make 5 curtains of equal size. If each curtain required 4 metres 25 cm to make, how much cloth is left over?

Accepted Answer

We know, that 1 m = 100 cm Cloth required to make 1 curtain = 4 m 25 cm = 4 m + m = 4 m + 0.25 m = 4.25 m ∴ Cloth required to make 5 curtains = 5 × 4.25 = 21.25 m Cloth remaining with Vedika = Total cloth with Vedika – Cloth used = 23.5 m – 21.25 m = 2.25 m ∴ The length of cloth remaining with Vedik

Chapter 5 Decimal Fractions Practice Set 16 Solutions