40% of 70 = 4 * ?
28
280
7
70
One litre of water is evaporated from 6 litres of a solution containing 5% salt.The percentage of salt in the remaining solution is
6%
5 5/7%
4 4/9%
5%
The price of an article is cut by 10 %.To restore it to the former value,the new price must be increased by.
10%
9 1/11%
11 1/9%
11%
37 1/2% of Rs.450 = ?
Rs.168
Rs.168.75
Rs.169
none of these
If the diameter of a circle is increased by 100% its area is increased by
300%
200%
100%
400%
The cost price of an article is 40% of the selling price.The percent that the selling price of the cost price is
40
60
240
250
_________% of 130 = 11.7
90
9
.9
0.09
75% of a number when added to 75 becomes the number itself.The number is
150
200
225
300
A mixture of 40 litres of milk and water contains 10% water.How much water should should be added to this so that water may be 20% in the new mixture?
5 litres
4 litres
6.5 litres
7.5 litres
In an examination 70% candidates passed in English and 65% in Mathematics If 27% candidates failed on both the subjects and 248 passed the examination,the total number of candidates was
400
348
420
484
