Question

Two mixers and one t.v. cost rs. 7000, while two t.v.s and a mixer cost rs. 9800. the value of one t.v. is :

Answer 1

Cost of one mixer be x and t.v. be y
2x+y=7000
x+2y=9800
4x+2y=14000
-x-2y= -9800
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3x=4200
x=1400
-2y= -9800+1400
-2y= -8400
y=4200