There were 100 pairs of socks 30% of them were sold on Monday and 40% of the remainder were sold on Tuesday. How many pairs of socks were left?
no idea?
started with 100%, then sold 30% then sold 40%.
How many % left?
0.3 * 100 = 30
100 - 30 = 70
0.4 * 70 = a
70 - a = ?
answer : 42
Yes. There are 42 pairs left.
To find out how many pairs of socks were left, we need to follow these steps:
1. Calculate the number of pairs of socks sold on Monday:
Multiply the total number of pairs of socks by the percentage sold on Monday:
100 pairs * 30% = 30 pairs sold on Monday.
2. Calculate the number of remaining pairs of socks after Monday's sales:
Subtract the number of pairs sold on Monday from the total number of pairs:
100 pairs - 30 pairs = 70 pairs remaining.
3. Calculate the number of pairs of socks sold on Tuesday:
Multiply the remaining pairs of socks by the percentage sold on Tuesday:
70 pairs * 40% = 28 pairs sold on Tuesday.
4. Calculate the final number of pairs of socks remaining:
Subtract the number of pairs sold on Tuesday from the remaining pairs after Monday's sales:
70 pairs - 28 pairs = 42 pairs of socks are left.
Therefore, there are 42 pairs of socks left after the sales on both Monday and Tuesday.