cocubes
Exam
Numerical Ability
Height and Distance
a building 11m height a shadow length 23.1 then height of the building which casts the shadow of length 14.7 under smaller conditions will be
Read Solution (Total 9)
-
- 23.1 : 14.7 =11 : X
X= 7 - 9 years agoHelpfull: Yes(21) No(0)
- 7
Height of building casting shadow of length 14.7= 14.7*(11/23.1) =7 - 9 years agoHelpfull: Yes(19) No(2)
- 11m------23.1
??? ?-------14.7
by cross multiplying :14.7*11/23.1=7.3 - 8 years agoHelpfull: Yes(11) No(3)
- 11 ---- 23.1
x ---- 14.7
x=7 - 7 years agoHelpfull: Yes(1) No(0)
- 11*14.7/23.7
- 8 years agoHelpfull: Yes(0) No(2)
- 23.1 : 14.7= 11 : X
(i.e.,) 23.1/14.7 = 11/X
Now cross myltiply, (23.1) * X = 11* 14.7
(23.1) * X = 161.7
X = 161.7/23.1
X = 1617/231
X = 7 - 8 years agoHelpfull: Yes(0) No(0)
- 7
23.1:14.7=11:x
23.1*x=11*14.7
x=(11*14.7)/23.1
x=7 - 7 years agoHelpfull: Yes(0) No(0)
- tan x = 11 /23.1
tan x = a/14.7
equate above two equations :
i.e
11/23.1 = a/14.7
a = (11*14.7)/23.1 = 7m - 7 years agoHelpfull: Yes(0) No(0)
- 7m. let req ht of the building be h then h/11 = 14.7/23.1
- 7 years agoHelpfull: Yes(0) No(0)
cocubes Other Question