Question

in 32 kg of mixture of sand and gravel 25% is send how many kg of sand must be added to produce a mixture which is 30% gravel

Answer 1

☆Hello friend☆

Weight of gravel in mixture= (25/100× 32)kg
= 8 kg

Weight of gravel in mixture= (30/100×32)kg
=(920/100)kg= 9.2 kg

Sugar must be added = 9.2 kg - 8 kg
= 1.2 kg

$hope \: it \: helps$

☺☺☺

Answer 2

25%of 32=8kg
Then gravel is 24kg or 75%
Gravel is fixed
Sand is add
30%=24kg
Then total mixture is
80kg and 48kg sand is added