Puja Limbu did 8 out of 10 math problems and Raju Lama did 11 out of 15 similar math problems. Express the number of problems solved by each of them in fractions and identify who did better performance.

Yellow brass is approximately \( \frac{13}{20} \) copper. Express the amount of copper as a percentage.

2 ¿cual es el residuo del numero \( n=1^{5}+2^{5}+3^{5}+\cdots+100^{5} \) al dividirse por \( 4 ? \)

Matt is trying to round 41.449 to 1 decimal place. a) Write a sentence to explain what he has done wrong. b) What is 41.449 rounded to 1 decimal place? \( \begin{aligned} 41.449 & =41.45 \text { to } 2 \text { d.p. } \\ & =41.5 \text { to } 1 \text { d.p. }\end{aligned} \)

What is the largest whole numbe that gives an answer of 500 when rounded to 1 significant figure?

2. \( \frac{2.362 \times 1.76}{1.46 \times 0.785} \) Ans it lies btw