1. 1
2. 9
3. 20
4. 49
20
1. 27
2. 100
3. 125
4. 343
100
1. 5
2. 50
3. 55
4. 91
50
1. 385
2. 427
3. 671
4. 264
427
1. 751
2. 853
3. 981
4. 532
751
1. x
2. 100x
3. x/100
4. y/100
x
1. 4% of a
2. 5% of a
3. 20% of a
4. None of these
4\% of a
1. 320
2. 400
3. 640
4. None of these
None of these
1. z=x/2
2. x = 2x
3. z=x/4
4. z = 4x
x = 2x
1. 15
2. 60
3. 600
4. 3600
60