She buys $x$ kg of rice and $y$ kg of sugar. a) Write an algebraic expression for the total cost. b) If she buys 2 kg of rice and 1 kg of sugar, how much does she pay? c) She also bought 500g (0.5 kg) of pulses. Add this to the expression. d) If she gave a ₹500 note for 2kg Rice, 1kg Sugar, and 0.5kg Pulses, calculate the balance amount returned.
Find the value of $x$ in the given figure (An exterior angle triangle diagram description): The exterior angle is $110^\circ$ and one of the interior opposite angles is $60^\circ$. rd sharma class 7 maths
Unlike your standard NCERT textbook, which holds your hand gently through every concept, RD Sharma throws you into the deep end—after teaching you how to swim, of course. She buys $x$ kg of rice and $y$ kg of sugar
RD Sharma is thick. Trying to finish a chapter in one day leads to burnout. Aim for 5–10 quality problems every day. c) She also bought 500g (0
11. $1$ 12. Area = Length $\times$ Breadth = $5.5 \times 2.4 = 13.2 \text{ cm}^2$. 13. Right-angled triangle (Scalene). 14. $(5a^2 + 7b^2) - (2a^2 - 3b^2) = 3a^2 + 10b^2$. 15. Sample Answer: $\frac{0.51}{1}, \frac{0.52}{1}$ or converting to denominator 16: $\frac{9}{16}, \frac{10}{16}$. 16. $\frac{2x}{3} = 6 \rightarrow 2x = 18 \rightarrow x = 9$.
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In conclusion, RD Sharma's Class 7 Maths book is a comprehensive textbook that provides a thorough understanding of mathematical concepts and helps students develop problem-solving skills. Its clear explanations, solved examples, and exercise questions make it an ideal resource for students studying mathematics in the seventh grade. By using this book effectively, students can build a strong foundation in mathematics and excel in their exams.
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