Answer :
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
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