A can do ajob in 16 days and B can do same job in 12 days. With the help of C they did the job in 4 days only. Then, C alone can do the job in..

48 days

Step-by-step explanation:

We know that,

Number of days A requires to do piece of work =16 days

Number of days B requires to do piece of work =12 days

Let us consider number of days C requires to do piece of work =x days

Number of days A,B and C together requires to do the piece of work =6 days

∴ We can calculate, work done by A in 1 day =1/16

Work done by B in 1 day =1/12

Work done by C in 1 day =1/x

Work done by A,B and C together in a 1 day =1/6

Now, work done by A,B and C together in 1 day is also equal to the sum of work done by each of them in 1 day =1/16+1/12+1/x=7/48+1/x

Therefore,

7/48+1/x=1/6

(7x+48)/48x=1/6

42x+288=48x

6x=288

x=288/6=48

∴C can do the work in 48 days.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

no solution

step-by-step explanation:

there is not enough information in the problem to solve.