7. Rahim bought two chocolates and gave the shopkeeper a 100-rupee note. The shopkeeper returned 10. Find the price of each chocolate, if both have the same price.
8. The length of a rectangular garden is 6 m more than thrice its breadth. If its perimeter is 100 m, find the dimensions of the garden.
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Answers:
45 rupees,
39m and 11m
Step-by-step explanation:
Ans-7
2x + 10 = 100
2x = 100 - 10
2x = 90
x = 90 / 2
x = 45
Ans-8
Length of the garden is 6 more than thrice the breadth.
→ Length = (3x + 6) m
→ Length of the garden (3x + 6)
= 3(11) + 6 = 39 m
Hence, the dimensions of the garden are 39 m and 11 m.
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