Question

Two bats three ballsand fourcaps cost 46₹ . Threebats one ball and six caps cost 62₹ .Find the cost of each ball?

Answer 1

Answer:

r=−

2

1

S

10

=

1−r

a(1−r

10

)

S

10

=

1+

2

1

96

⎝

⎛

1−(−

2

1

)

10

⎠

⎞

=96×

3

2

×(

2

10

2

10

−1

)

=64(

2

10

2

10

−1

)

=

2

4

2

10

−1

=

16

1023