Question

a mixture contains 500/11% sand , 400/11% gravel and rest cement. Find the weight of mixture which contains 12.5 kg wt of sand.Also determine the weight of mixture that will contai 11kg wt of cement

Answer 1

27.5 & 60.5

Please find the explanation attached

Answer 2

Answer:

Sand = $\frac{500}{11} \%$

Gravel = $\frac{400}{11} \%$

Cement = $100\% - (\frac{500}{11} +\frac{400}{11})\%=\frac{200}{11}\%$

Let the weight of mixture be x

Find determine the weight of mixture that will contai 11kg wt of cementThe weight of mixture which contains 12.5 kg wt of sand

So,  $\frac{500}{11} \% x= 12.5$

$\frac{500}{1100} x= 12.5$

$x=27.5$

The weight of mixture which contains 12.5 kg wt of sand is 27.5 kg

Determine the weight of mixture that will contain 11kg wt of cement

So, $\frac{200}{11}\%x=11$

$x=60.5 kg$

The weight of mixture that will contain 11kg wt of cement is 60.5 kg