What is the total value of all ten-dollar bills across the four wallets?

• A. $50
• B. $60
• C. $70
• D. $40

Answer: (B)

Total value comes from counting how many ten-dollar bills you have in total across the wallets and then multiplying by ten. If the four wallets together contain six ten-dollar bills, you multiply 6 by 10 to get $60. So you’d add up the tens in each wallet to reach six, then compute 6 × 10 = $60. The other amounts would require different totals of ten-dollar bills (four tens for $40, five tens for $50, seven tens for $70), which isn’t the case here.