Question

100
576 ml mixture contains milk mand water in the ratio of 7:5 respectively. 240 ml of
mixture is taken out and 'x' ml of water and 'x + 64' ml of milk is added into the
remaining mixture so that quantity of milk in the final mixture is 60% more than that of
water. Find the value of x.
576ml मिश्रण में दूध और पानी का अनुपात क्रमशः 7:5 है। 240 ml मिश्रण निकाला जाता है और शेष
मिश्रण में 'x' ml पानी और 'x + 64' ml दूध मिलाया जाता है, ताकि अंतिम मिश्रण में दूध की मात्रा पानी
की तुलना में 60% अधिक हो। x का मान ज्ञात करें?
a)40
b) 80
c) 60
d) 50
e) Can't be determined
any course​

Answer 1

Answer:

729 ml of mixture is in the ratio of 7:2 milk:water. Then:

729/ 7+2=729/9=81

7x 81=567ml milk

2 x 81=162 ml water.

Let n be the amount of water to be added. Then:

567=7/10(729+n)

=510.3+.7n

56.7=.7n

n=56.7/.7

=81 ml of water to be added