Question

suppose 2.5 kg weight of rice contains 6.25x10^5 grains. how many grains are there in 7.5kg? of Direct and inverse variation​

Answer 1

Answer:

a) 7.5 kg = 18.75 \times 10^{5} grains18.75×10

5

grains

b) 12.5 kg= 31.25 \times 10^{5} grains=31.25×10

5

grains

Step-by-step explanation:

Given,

2.5 kg weight of rice = 6.25\times 10^{5}6.25×10

5

grains

∵ 2.5 kg weight of rice = 6.25\times 10^{5}6.25×10

5

grains

∴ 1 kg weight of rice =\dfrac{6.25}{2.5} \times 10^{5} grains

2.5

6.25

×10

5

grains

a) 7.5 kg

7.5 kg weight of rice = 7.5\times \dfrac{6.25}{2.5} \times 10^{5} grains7.5×

2.5

6.25

×10

5

grains

7.5 kg weight of rice = 3\times 6.25 \times 10^{5} grains3×6.25×10

5

grains

= 18.75 \times 10^{5} grains18.75×10

5

grains

b) 12.5 kg

12.5 kg weight of rice =12.5\times \dfrac{6.25}{2.5} \times 10^{5} grains12.5×

2.5

6.25

×10

5

grains

12.5 kg weight of rice = 5\times 6.25 \times 10^{5} grains5×6.25×10

5

grains

= 31.25 \times 10^{5} grains=31.25 ×10

5

grains