Questions & Answers

Question

Answers

A.Rs. 6000

B.Rs. 10000

C.Rs. 12000

D.Rs. 18000

Answer
Verified

Let the price of a scooter be 3x and of a T.V. be 2x.

The difference between the two prices is 3x-2x,

\[ \Rightarrow 3x - 2x = 6000\]

Isolate the variable on one side of the equation.

When the variable is multiplied by a coefficient in the final stage, multiply both sides of the equation by the reciprocal of the coefficient.

\[ \Rightarrow x = 6000\]

If the unknown number is in the denominator we can use another method that involves the cross product. The cross product is the product of the numerator of one of the ratios and the denominator of the second ratio.

Therefore, price of scooter is 3x=3×6000= Rs. 18000

And the price of T.V. set is 2x=2×6000=Rs. 12000

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