The age of a man is twice the age of his son .The sum of their ages is 75 years .Then their ages are __________ .
25,50
20,55
15,60
none of these
Solution of 3x - 4y = 10 and 5x - 3y = 24 is __________ .
x = 6, y = 2
x = 4 , y = 4
x = 5 , y = 7
x = 2 and y = 3
The sum of six times a number and five times the same number is 44 . Then the number is ________ .
9
7
4
6
The difference between the ages of two girls is 5 years.Their total age is 19 years .Then their ages are ________ .
14 , 5
13 , 6
11,6
12 , 7
If 5x + 3 = 18 ,then the value of x is __________ .
21/ 5
-21/5
3
-3
Solve 2a + b = 5 3a - 2b = 4
a = 2 , b = 1
a = 1 , b = 2
a = 2, b = 2
a = 4, b = 2
If I multiply a number by 4 and then add 8 the total is 32 .What is the number ?
8
Rajesh had some money .He gave one fourth of it to his friend Rohit and still he has Rs.144 left with him.Find how much money he had in the beginning .
Rs .190
Rs .194
Rs. 196
Rs .192
The sum of a two digit number and the number obtained on reversing the digits is 165 .If the digits differ by 3,then the numbers are _______ .
69
65
67
89
Solution of x - 4y = 9, x - 7y = 18 by the method of substitution .
x=-3, y=-3
x = 3 , y = -3
x = 4 , y = 3
x = -4 , y = 5
