Question 3:
Tensile strength of a material $A$ is a multiple of amount of materials $a, b$, $c$, $d$ used. If the amount of material of $a, b, c, d$ are changed by $+30 \%,-$ $30 \%,-25 \%,+25 \%$ respectively, what will be the overall change in tensile strength of $A$ ?
Tensile strength of a material $A$ is a multiple of amount of materials $a, b$, $c$, $d$ used. If the amount of material of $a, b, c, d$ are changed by $+30 \%,-$ $30 \%,-25 \%,+25 \%$ respectively, what will be the overall change in tensile strength of $A$ ?
Question 7:
In a local election, 2400 people were to vote for Party A or Party B. Party A was bound to win the election. However, on Election Day, one-third of the voters of Party A were kidnapped. Party B was also able to influence the remaining Party A voters and thus double the strength of its voters. In this way, Party A lost by a majority which was half of that by which it would have won had the elections been fair. How many people finally voted for Party A and Party B?
In a local election, 2400 people were to vote for Party A or Party B. Party A was bound to win the election. However, on Election Day, one-third of the voters of Party A were kidnapped. Party B was also able to influence the remaining Party A voters and thus double the strength of its voters. In this way, Party A lost by a majority which was half of that by which it would have won had the elections been fair. How many people finally voted for Party A and Party B?