REVENUE OFFICER Government Jobs Exams Numerical Ability

find x in 4^x * 64^2x = 16^x+5

a) 1 b) 5 c) 4 d) 2

Read Solution (Total 3)

2 is the correct answer
9 years agoHelpfull: Yes(3) No(1)

4^x*64^2x= 4^x*4^6x=4^7x

16^x+5= 4^2x+10
2x+10=7x ==>x=2.
option d
9 years agoHelpfull: Yes(2) No(0)
ab is d because 4^x*64^2x=16^x+5
2^2x*2^12x=2^4(x+5)
14x=4x+20
x=2
9 years agoHelpfull: Yes(0) No(0)

REVENUE OFFICER Other Question

if 18% of the total number of oranges in a basket is 36 then the total number of oranges is
a) 100 b)150 c)200 d)300 A ladder of 25 ft length reaches a window which is 24 ft above the ground level on one side of the street. Keeping its foot at the same point the ladder is turned the other side of the street and now reaches a window of 7 ft high. then the width of the street?
a] 30 b] 32 c] 29 d] 31