A number gets reduced to one-third when 48 is subtracted from it. What will be two-third of that number?
24
72
96
None of these
The distance between two places is 12 km. A map scale is 1:25000. The distance between the two places on the map, (in cm) is
24
36
48
60
When half of a number is increased by 15, the result is 39. The sum of digits of the original number is
6
7
9
12
D.
12
Let the number be x
Now according to question,
+15=39
x = 48
Therefore the required sum = 4+8=12
The hundreds digit of a three-digit number is 7 more than the units digit. The digits of the number are reversed and the resulting number is subtracted from the original three-digit number. The units digit of the final number so obtained is
0
1
2
3
Rani, who is y yr old at present, is x yr older than Hamid. 15 yr ago, Hamid's age was of the age of Rani. Which of the following is true?
3y-4x= 45
2y-x= 15
-15=
3x-4y= 45