Campus Maths Puzzle Numerical Ability Percentage

How many liters of 20% alcohol be mixed with 60% alcohol to get 32% alcohol ?
(1) We get 70 liters of 32% alcohol
(2) We used 21 liters of 60% alcohol to prepare 32% alcohol
A.a
B.b
C.c
D.d

Read Solution (Total 4)

Campus Other Question

if 9cosx+12sinx=15
find the value of cotx
The figure below shows a "Size 3" equilateral triangle divided into 9.
"Size 1" equilateral triangles. The figure has 6 upward facing and 3 downward facing
"Size 1" equilateral triangles, 3upward facing and no downward facing
"Size 3" triangles. It has a total of 13 equilateral triangles of all sizes. the following size 6 triangle is divided up in the same way.what is the sum of the number of upfacing size 2 triangles and the number of upward facing size 4 triangles?
Option
a) 27
b) 17
c) 18
d) 19