Question

The cost of 7 shirts and 5 pairs of trousers is 11900 rupees.Find the cost of 3 shirts and 3 pairs of trousers,if the cost of a pair of trousers exceeds the cost of a shirt by 100 rupees. (Plz do it in Equation form)

Answer 1

step by step solution

Answer 2

Cost of 3 shirts and 3 pairs of trousers is Rs.6000

Step-by-step explanation:

Let the cost of 1 shirt be x

We are given that the cost of a pair of trousers exceeds the cost of a shirt by 100 rupees

Cost of a pair of trouser = x+100

Cost of 7 shirts = 7x

Cost of 5 pairs of trousers = 5(x+100)

We are given that The cost of 7 shirts and 5 pairs of trousers is 11900 rupees

So,$7x+5(x+100)=11900\\7x+5x+500=11900\\12x=11400\\x=\frac{11400}{12}\\x=950$

Cost of 1 pair of trouser = x+100=950+100=1050

Cost of 3 shirts = 3(950)=2850

Cost of 3 pairs of trousers = 3(1050)=3150

Cost of 3 shirts and 3 pairs of trousers = 3150+2850=6000

Hence Cost of 3 shirts and 3 pairs of trousers is Rs.6000

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The cost of 2 pens and 3 erasers is Rs 46.the cost of pen and 2 erasers is Rs 26.find the cost of 4 pens and 4 erasers

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