1.

Raj buys books worth rupees four hundred, he has coins of denomination two-rupees. How many coins does he need to pay the bill?(a) 200(b) 100(c) 400(d) 150The question was asked in a national level competition.Origin of the question is Applications of Linear Equation (Create and Solve the Equations) in division Linear Equations in One Variable of Mathematics – Class 8

Answer»

The correct option is (a) 200

Easiest explanation: LET the NUMBER of coins required be X.

The amount to be paid is rupees 400.

(2 * x) = 400

∴ 2x = 400

∴ x = 200

Raj needs 200 coins each of two rupees in order to PAY the bill amount.



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