81: A point is selected at random inside a rectangle and perpendiculars are drawn on each side from the point. The sum of these perpendiculars is 24 cm. If the length of the rectangle is 3 times the width, the perimeter of the rectangle will be
(a) 36 cm
(b) 42 cm
(c) 24 cm
(d) 48 cm
82: Vinegar is an aqueous solution of
(a) oxalic acid
(b) citric acid
(c) acetic acid
(d) hydrochloric acid
83: Which one of the following pairs of states and tribes is not correctly matched?
(a) Assam : Miri
(b) Nagaland : Konyak
(c) Aranachal Pradesh : Apatani
(d) Madhya Pradesh : Lambada
84: Which of the following was mainly responsible for the transfer of power by the British to India on August 15, 1947 ?
(a) Cabinet Mission Plan
(b) Attlee Declaration
(c) Simon Commission Plan
(d) Mountbatten Declaration
85: Which of the following come under Non-plan expenditure ?
I. Subsidies
II. Interest payments
III. Defence expenditure
IV. Maintenance expenditure for the infrastructure created in the previous plans
Choose the correct answer using the codes given below :
Codes:
(a) I and II
(b) I and III
(c) II and IV
(d) I, II, III and IV