Discussions
Select Date
Tags:
Sohil Rajput

· started a discussion

· 1 Months ago

xy + x + y = 23
xy+x+y+1=24
(x+1)(y+1)=24..........................1
xz + x + z = 41
xz + x + z + 1 = 42
(x+1)(z+1) = 42..............2
yz + y + z +1 = 28
(y+1)(z+1) = 28...................3
from 1, 2 & 3 ony x=5,y=3 and z=6 satisfy the given equations therefore
x + y + z=14

Question:

If xy + x + y = 250, xz + x + z = 300, yz + y + z = 216, find the value of x + y + z. 

Options:
A)

50.25

B)

40.5

C)

45.25

D)

48.25

Solution:

Ans:(c)



Ankit Mogha

· commented

· 1 Months ago

data alag hai q me jo apne use kia hai

Annu sharma

· commented

· 1 Months ago

thanx

All Rights Reserved Top Rankers