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JcAlmighty

Q8. The answer is 74.

Let 40 be 100%.

Step 1. Calculate 85% of 40.
If 40 is 100%, how much will be 85%:
40 : 100% = x : 85%
x 100% = 40 85%
x = 40 85% / 100% = 34

Step 2: Add given value to 40 (since it is increased):
40 + 34 = 74



Q10. The answer is 315.

Let 350 be 100%.

Step 1. Calculate 10% of 350.
If 350 is 100%, how much will be 10%:
350 : 100% = x : 10%
x 100% = 350 10%
x = 350 10% / 100% = 35

Step 2: Distract given value from 350 (since it is decreased):
350 - 35 = 315



Q28. The answer is 42.

Let 24 be 100%.

Step 1. Calculate 75% of 24.
If 24 is 100%, how much will be 75%:
24 : 100% = x : 75%
x 100% = 24 75%
x = 24 75% / 100% = 18

Step 2: Add given value to 24 (since it is increased):
24 + 18 = 42



Q10. The answer is 4.5.

Let 30 be 100%.

Step 1. Calculate 85% of 30.
If 30 is 100%, how much will be 85%:
30 : 100% = x : 85%
x 100% = 30 85%
x = 30 85% / 100% = 25.5

Step 2: Distract given value from 30 (since it is decreased):
30 - 25.5 = 4.5

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