Question

Shreekala works in a house as a maid. She wanted to save some money for buying a T.V. The list price of the T.V. is * 38,500.
She saved * 2200 in first month and then increased here monthly savings by *200. The sequence of monthly savings forms
an A.P. with first term 2200.
On the basis of the above information, answer the following questions :
(i) How much money does she save in 8th month?
(a) * 1600
(b) * 17600
(C).* 3600
(d) 3800
(ii) How much money does she save in first 8th months?
(a) 19200
(b) * 22400
(c) 22800
(d). * 23200.
(iii) If while selling the T.V., the shopkeeper offers a discount of 10% and charges G.S.T. at the rate of 12%, what is the
net price of the T.V.?
(a) 34650
(b) * 36450
(c). 38808
(d) 738880.
(iv) After how many months will she be able to buy T.V.?
(a) 11
(b) 12
(d) 14.
(v) After buying the T.V., how much money is left with her?
(a) 3150
(b) *4950
(c) 792
(d) 720.
please add solving also​

Answer 1

1= Firstly form an A.P

In first month she saved rupees 2200 then increased her monthly saving by Rupees 200

Therefore d=200

A.p will be 2200,2400,2600_ _ _ In order to find for 8 months.

a8=a+7d

=2200+7×200

=2200+140

=3600 ans.