CBSE Class 10-Mathematics: Chapter – 3 Pair of Linear Equation in Two Variables Part 21 (For CBSE, ICSE, IAS, NET, NRA 2022)
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Question 24:
On selling a T. V. at gain and a fridge at gain shop keeper gains ₹ . But if he sells the T. V at gain and the Fridge at loss, he gains on the transaction. Find the actual Price of TV and Fridge.
Answer:
Let the selling price of TV ₹
And fridge
According to question,
And
On solving eq. (i) and (ii) , we get,
Question 25:
A taken 3 hours more than B to walk a distance of . But if A doubles his speed, he is ahead of B by hours. Find their original speed.
Answer:
Let the original speed of A and B are and respectively.
According to question,
Or
Or
And
On adding (i) and (ii) , we get,
Or
And