Question

Suppose 2 kg of sugar contains `9 xx 10^6` crystals. How many sugar crystals are there in (i) 5 kg of sugar? (ii) 1.2 kg of sugar?

Answer 1

(i) sugar crystals in 5 kg of sugar be`= x`
`x/5 = (9*10^6)/2`
`x= (9*10^6*5)/2 `
`= 22.5*10^6` crystals
(ii) sugar crystals in 1.2 kg of sugar `= y`
`y/12 = (9*10^6)/2`
`y = (9*10^6*1.2)/2`
`= 5.4 * 10^6` crystals
answer