a, b are positive integers. The remainder of a to be divided by 7 is 6 and the remainder of b to be divided by 8 is 5.
Which is possible to be the remainder of a*b to be divided by 52
Select.
A) a) 2
B) b) 6
C) c) 8
D) d) 12
E) e) 30
Two ways to do it...   a=7x+6..   b=8y+5..   1) convenient way..   Take x and y as 0, and you will get a*b as   6*5= 
<gadget id="calculator">  6*5</gadget>
<output>30</output>
30   Answer : e) 30
<result>E</result>
a, b are positive integers. The remainder of a to be divided by 7 is 6 and the remainder of b to be divided by 8 is 5.
Which is possible to be the remainder of a*b to be divided by 52