There are some scorpion (8 legs) and some rat. Total number of heads are 45 and legs are 260. Find the total number of rat ?
Answers
Answered by
3
there are 'x' scropion & 'y' rat
so x+y=45
8x+4y=260
8x+4y=260
-
4x+4y=80
=4x=80
x=20
y=45-20=25
there are 20 scorpion & 25 rats
so x+y=45
8x+4y=260
8x+4y=260
-
4x+4y=80
=4x=80
x=20
y=45-20=25
there are 20 scorpion & 25 rats
jyotiranjanbhoi42:
it's wrong
options are 20,25,35,65
now it's right
okay but how you 80find out
260-180=80. There is my mistake. I forgot to write 180 so the eqn is 4x+4y=180
Similar questions