If a number 774958A96B is to be divisible by 8 and 9, the values of A and B, respectively, will be:

• ans 0,8
  Using the divisibility rules, For 8, the last three digits have to divisible by 8, therefore the number 774958A96B is divisible by 8 if 96B is divisible by 8. and 96B is divisible by 8 if it is 960 or 968 thus B is either 0 or 8.
  For 9, the sum of the number has to be divisible by 9, therefore (55 + A + B) is divisible by 9 if (A + B) is 8. Now either of A or B could be 8, but the other has to be zero.
• 12 years agoHelpfull: Yes(9) No(0)
• thickness of box = 0.5 so dimension of box from inside = 20cm x 10cm x 5cm
  cost of painting = surface areaxrate -->70 = (2*10*20 + 2*10*5 +2*20*5)xrate
  --> rate=70/700 =0.1
• 13 years agoHelpfull: Yes(3) No(4)
• ans is 8
  by the
  divisibility rules of 8,9
• 13 years agoHelpfull: Yes(2) No(2)
• in this option is must to solve the question
• 13 years agoHelpfull: Yes(1) No(1)