Litmus World Interview Questions, Process, and Tips

A parabola is obtained as the intersection of a cone with a
plane

132

Correct option is C)
Let be students are consider as child
Let the age of child added later be x years.
average age of 12 children =20 years
∴ Total age of 12 children =20×12=240 years
After one more child is added-
Average of 13 children =20−1=19 years
Average age of 13 children =
13
sum of 12 children+x
​

19=
13
240+x
​

⇒240+x=247
⇒x=247−240=7 years
Hence the age of child added later is 7 years.

F+V-E =2;
F= faces;V= vertices;E = number of edges

C

Please let me know answer.

B. 279

c=a/b
c=a-1
=>b=a/c
=>b=a/a-1

2.01

11

9

5436

to find the root of f(x) = 0;