Question

Help me quick How can 10% of 64 be used to determine 40% of 64? Enter your answers in the boxes to correctly complete the statement.

10% of 64 is ,so 40% of 64 is .

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Answer 1

• 10% of 64 is 6.4, so 40% of 64 is 25.6.

Explanation:

If 10% of 64 is found, simply multiply it by 4 to get 40% of 64.

• => 10/100 x 64
• => 1/10 x 64
• => 1/5 x 32
• => 32/5
• => 6.4

Hence, 10% of 64 is 6.4. Now, multiply it by 4 to get 40% of 64.

• => 6.4 x 4
• => 25.6

Hence, 10% of 64 is 6.4, so 40% of 64 is 25.6.

Answer 2

10% of 64 is 6.4, so 40% of 64 is 25.6

Explanation:

6.4 x 4 = 25.6