a jeweler has bars of 18-carat gold and 12-carat
A jeweler has bars of 18-carat gold and 12-carat gold. How much of every melted together to obtain a bar of 16-carat gold, weighing 120 gm ? It is given that pure gold is 24 carat.
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a two-digit number is seven times the sum of its digits the number formed by reversing the digits is 18 less than the original number find
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5 years however a mans age will be 3times his sons age and 5 years ago he was 7 times as old as his son find their present
the students of a class are made to stand in complete rows if one student is more in each row there would be 2 rows less and if one student is less
a jeweler has bars of 18-carat gold and 12-carat gold how much of every melted together to obtain a bar of 16-carat gold weighing 120 gm it is given
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a board with a number of green blue and red coloured switches is normally seen near the entrance of each house what is the
a battery and the plug points in the switch boards home give potential difference what is the disimilar in the nature of the current given by the
determine five chemical reactions you observe in your daily life observe the reaction carefully present the change in the condition of the
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