Harlan used 3 1/2 kg of sand to make a large hourglass. to make a smaller hourglass, he only used 1 3/7 kg of sand. how much more sand did it take to make the large hourglass than the smaller one?

2  kg more sand need to make  large hourglass than the smaller one

Step-by-step explanation:

given data

large house sand = 3 kg

small house sand = 1 kg

to find out

How much more sand did it take to make the large hourglass than the smaller one

solution

we know sand used for small house is 1 kg  and for large is 3 kg

so we need more extra sand is = sand used for large - sand used for small   ..........1

put here value

more extra sand is = 3 - 1

more extra sand is = 3 - 1

more extra sand is = 2

so 2  kg more sand need to make  large hourglass than the smaller one