Subject :IMO Class : Class 7
The price of an object A is ₹ 100 less than 6 times the price of an object B. A similar set of one object A and 4 object B is priced at ₹ 1400. Find the price of object A.
A₹ 750
B₹ 600
C₹ 850
D₹ 800
Ans 1:
Class : Class 7
let the price of object B be x
the the price of object A is (6x-100)
now ATP,
1(6x-100) + 4*x=1400
=>6x-100 + 4x=1400
=>10x -100=1400
=>10x=1500
=>x=1500/10
=>x=150
now the price of object A=150*6-100
=800(d)